7th Class Science Respiration in Organisms Question Bank

done Respiration In Plants And Animals Total Questions - 115

• question_answer1)
  Which of the following organism can respire in total absence of air?
  A)
  tapeworm  done clear
  B)
  hydra done clear
  C)
  earthworm                   done clear
  D)
  amoeba done clear
  View Solution play_arrow

• question_answer2)
  At high altitude, RBC of human blood will
  A)
  increase in number done clear
  B)
  decrease in number done clear
  C)
  increase in size done clear
  D)
  decrease in size done clear
  View Solution play_arrow

• question_answer3)
  Exchange of gases in mammal take place through
  A)
  trachea          done clear
  B)
  bronchi done clear
  C)
  alveoli                          done clear
  D)
  none of these done clear
  View Solution play_arrow

• question_answer4)
   An adult human being breathes in and out for ______ times in a minute.
  A)
  15-18                           done clear
  B)
  10-15 done clear
  C)
  20-25                           done clear
  D)
  50-60 done clear
  View Solution play_arrow

• question_answer5)
  Smoking can cause
  A)
  cancer         done clear
  B)
  fever done clear
  C)
  anaemia          done clear
  D)
  Goitre done clear
  View Solution play_arrow

• question_answer6)
  During exercise, we get cramps in the legs due to the accumulation of_________.
  A)
  alcohol             done clear
  B)
  water done clear
  C)
  Lactic acid                   done clear
  D)
  carbon dioxide done clear
  View Solution play_arrow

• question_answer7)
  An organism that can breathe both through skin and lungs is
  A)
  dog                              done clear
  B)
  fish done clear
  C)
  frog             done clear
  D)
  earthworm done clear
  View Solution play_arrow

• question_answer8)
  In cockroaches, air enters through ______.
  A)
  gills                              done clear
  B)
  trachea done clear
  C)
  skin                              done clear
  D)
  spiracles done clear
  View Solution play_arrow

• question_answer9)
  An organism that can breathe through skin is
  A)
  frog                              done clear
  B)
  fish done clear
  C)
  earthworm                   done clear
  D)
  Both (a) and (c) done clear
  View Solution play_arrow

• question_answer10)
  During exhalation size of chest cavity
  A)
  increases done clear
  B)
  decreases done clear
  C)
  remains same done clear
  D)
  first increases then decreases done clear
  View Solution play_arrow

• question_answer11)
  ______ prevents collapsing of trachea.
  A)
  diaphragm                   done clear
  B)
  ribs done clear
  C)
  muscles                        done clear
  D)
  cartilaginous rings done clear
  View Solution play_arrow

• question_answer12)
  Lungs have large number of alveoli for
  A)
  more nerve supply done clear
  B)
  having proper shape done clear
  C)
  more space for increasing volume of inspired air done clear
  D)
  more surface area for diffusion of gases. done clear
  View Solution play_arrow

• question_answer13)
  Covering of lungs is called
  A)
  pericardium                 done clear
  B)
  pleural membrane done clear
  C)
  peritoneum                  done clear
  D)
  perichondrium done clear
  View Solution play_arrow

• question_answer14)
  Which of the following is the correct sequence of air passage during inhalation?
  A)
  nostrils\[\to \]larynx\[\to \]pharynx\[\to \]trachea\[\to \]lungs done clear
  B)
  nostrils\[\to \]pharynx\[\to \]larynx\[\to \]trachea\[\to \]alveoli done clear
  C)
  larynx\[\to \]nostrils\[\to \]trachea\[\to \]lungs done clear
  D)
  nasal passage\[\to \]trachea\[\to \]pharynx\[\to \]larynx\[\to \]alveoli done clear
  View Solution play_arrow

• question_answer15)
  Which of the following increases in muscle cells when they are lacking in oxygen?
  A)
  uric acid         done clear
  B)
  lactic acid done clear
  C)
  lactose             done clear
  D)
  carbon dioxide done clear
  View Solution play_arrow

• question_answer16)
  Each human lungs contain _____ alveoli.
  A)
  100 million                   done clear
  B)
  300 million done clear
  C)
  200 million        done clear
  D)
  400 million done clear
  View Solution play_arrow

• question_answer17)
  What happens when human body cells are deprived of oxygen?
  A)
  They lose energy done clear
  B)
  They die done clear
  C)
  They stop working until the oxygen supply is resumed done clear
  D)
  all the above are correct done clear
  View Solution play_arrow

• question_answer18)
  Which of the following in not correct for the process of breathing in air?
  A)
  Air rushes into our lungs done clear
  B)
  Our ribs are raised done clear
  C)
  Our diaphragm is curved upwards further done clear
  D)
  The volume of our chest increases done clear
  View Solution play_arrow

• question_answer19)
  In cockroaches, air enters the body through
  A)
  lungs                            done clear
  B)
  gills done clear
  C)
  spiracles           done clear
  D)
  skin done clear
  View Solution play_arrow

• question_answer20)
  Oxygen is carried to the tissues of an insect by
  A)
  blood                           done clear
  B)
  gills done clear
  C)
  lungs                            done clear
  D)
  tracheae done clear
  View Solution play_arrow

• question_answer21)
  During exhalation, the ribs
  A)
  move outwards done clear
  B)
  more downwards done clear
  C)
  move upwards done clear
  D)
  none of these is correct done clear
  View Solution play_arrow

• question_answer22)
  In our body glucose breaks down to carbon dioxide and water. Energy is released during this process. It can be represented by the following equation: Glucose + Oxygen Carbon dioxide + Water + Energy Which of the following processes is represented by the above equation?
  A)
  Photosynthesis             done clear
  B)
  Combustion done clear
  C)
  Respiration                  done clear
  D)
  Breathing done clear
  View Solution play_arrow

• question_answer23)
  Which of the following sets represent the products of anaerobic respiration in yeast?
  A)
  Alcohol and carbon dioxide done clear
  B)
  Carbon dioxide and glucose done clear
  C)
  Glucose and oxygen done clear
  D)
  Oxygen and alcohol done clear
  View Solution play_arrow

• question_answer24)
  During inspiration, air passes into lungs due to
  A)
  increase in volume of thoracic cavity and lower lung pressure done clear
  B)
  fall in pressure inside the lungs done clear
  C)
  increased volume of thoracic cavity done clear
  D)
  muscular expansion of lungs done clear
  View Solution play_arrow

• question_answer25)
  Lactic acid is a product of
  A)
  aerobic respiration done clear
  B)
  anaerobic respiration done clear
  C)
  both the above done clear
  D)
  none of these done clear
  View Solution play_arrow

• question_answer26)
  A breath means
  A)
  one inhalation done clear
  B)
  one exhalation done clear
  C)
  one inhalation and one exhalation done clear
  D)
  none of the above is correct done clear
  View Solution play_arrow

• question_answer27)
  Select the one that is correct: While we exercise
  A)
  we breathe fast done clear
  B)
  we breathe deep done clear
  C)
  we inhale more oxygen done clear
  D)
  all of these done clear
  View Solution play_arrow

• question_answer28)
  Which of these forms the floor of the chest cavity?
  A)
  Lungs                           done clear
  B)
  ribs done clear
  C)
  diaphragm        done clear
  D)
  all of these done clear
  View Solution play_arrow

• question_answer29)
  Which of the following is correct about yeast?
  A)
  It is a single celled organism done clear
  B)
  It respires an aerobically done clear
  C)
  both the above are correct done clear
  D)
  none of the above is correct done clear
  View Solution play_arrow

• question_answer30)
  The percentage of carbon dioxide in exhaled air is
  A)
  0.04%                          done clear
  B)
  0.4% done clear
  C)
  4.4%                done clear
  D)
  6.4% done clear
  View Solution play_arrow

• question_answer31)
  During sneezing, we expel
  A)
  foreign particles from inhaled air done clear
  B)
  cough done clear
  C)
  both the above done clear
  D)
  none of these done clear
  View Solution play_arrow

• question_answer32)
  How do the anaerobes get energy?
  A)
  by anaerobic respiration done clear
  B)
  by aerobic respiration done clear
  C)
  both the above are correct done clear
  D)
  none of these is correct done clear
  View Solution play_arrow

• question_answer33)
  Anaerobic respiration is also called
  A)
  transportation  done clear
  B)
  breathing done clear
  C)
  fermentation    done clear
  D)
  imbibition done clear
  View Solution play_arrow

• question_answer34)
  Gaseous exchange in plants occurs through ____ and _______.
  A)
  Stroma, grana  done clear
  B)
  stomata, lenticels done clear
  C)
  Guard cells, grana       done clear
  D)
  none of these done clear
  View Solution play_arrow

• question_answer35)
  To present entry of food into the trachea, the opening is guarded by ______ .
  A)
  epiglottis         done clear
  B)
  glottis done clear
  C)
  hard palate                  done clear
  D)
  soft palate done clear
  View Solution play_arrow

• question_answer36)
  The narrowest and most numerous tubes of lungs are called ______.
  A)
  bronchus                      done clear
  B)
  bronchioles done clear
  C)
  alveoli              done clear
  D)
  None of these done clear
  View Solution play_arrow

• question_answer37)
  The diaphragm remains _______ in normal position.
  A)
  flattened          done clear
  B)
  arched done clear
  C)
  perforated        done clear
  D)
  varies done clear
  View Solution play_arrow

• question_answer38)
  Earthworms respire through
  A)
  moist skin        done clear
  B)
  clitellum done clear
  C)
  spiracles          done clear
  D)
  lungs done clear
  View Solution play_arrow

• question_answer39)
  The actual site of gaseous exchange in respiratory system is
  A)
  trachea           done clear
  B)
  bronchioles done clear
  C)
  alveli            done clear
  D)
  all of these done clear
  View Solution play_arrow

• question_answer40)
  Gills are for
  A)
  terrestrial respiration done clear
  B)
  aquatic respiration done clear
  C)
  pulmonary respiration    done clear
  D)
  all of these done clear
  View Solution play_arrow

• question_answer41)
  DIRECTION: Match Column I with Column II and select the correct answer using the code given below the columns.

  Column-I	Column-II
  (A) Inhalation	(p) fermentation
  (B) Exhalation	(q) taking in \[{{\text{O}}_{\text{2}}}\]
  (C) Anaerobic	(r) Presence of \[{{\text{O}}_{\text{2}}}\]
  (D) Aerobic	(s) giving out \[{{\text{O}}_{\text{2}}}\]

  A)
  (A) \[\to \] (s), (B) \[\to \] (q), (C) \[\to \] (p), (D) \[\to \] (r) done clear
  B)
  (A) \[\to \] (q), (B) \[\to \] (s), (C) \[\to \] (p), (D) \[\to \] (r) done clear
  C)
  (A) \[\to \] (p), (B) \[\to \] (r), (C) \[\to \] (q), (D) \[\to \] (s) done clear
  D)
  (A) \[\to \] (r), (B) \[\to \] (p), (C) \[\to \] (q), (D) \[\to \] (s) done clear
  View Solution play_arrow

• question_answer42)
  DIRECTION: Match Column I with Column II and select the correct answer using the code given below the columns.

  Column-I	Column-II
  (A) Plants	(p) Blow holes
  (B) Whales	(q) Spiracles
  (C) Mosquito	(r) Stomata
  (D) Frog	(s) skin

  A)
  (A) \[\to \] (q), (B) \[\to \] (s), (C) \[\to \] (p), (D) \[\to \] (r) done clear
  B)
  (A) \[\to \] (s), (B) \[\to \] (q), (C) \[\to \] (r), (D) \[\to \] (p) done clear
  C)
  (A) \[\to \] (r), (B) \[\to \] (p), (C) \[\to \] (q), (D) \[\to \] (s) done clear
  D)
  (A) \[\to \] (p), (B) \[\to \] (r), (C) \[\to \] (s), (D) \[\to \] (q) done clear
  View Solution play_arrow

• question_answer43)
  DIRECTION: Match Column I with Column II and select the correct answer using the code given below the columns.

  Column-I	Column-II
  (A) Fish	(p) skin and lungs
  (B) Snake	(q) lungs
  (C) Humans	(r) cell membrane
  (D) Amoeba	(s) gills

  A)
  (A) \[\to \] (r), (B) \[\to \] (p), (C) \[\to \] (s), (D) \[\to \] (q) done clear
  B)
  (A) \[\to \] (q), (B) \[\to \] (r), (C) \[\to \] (p), (D) \[\to \] (s) done clear
  C)
  (A) \[\to \] (s), (B) \[\to \] (p), (C) \[\to \] (q), (D) \[\to \] (r) done clear
  D)
  (A) \[\to \] (p), (B) \[\to \] (q), (C) \[\to \] (s), (D) \[\to \] (r) done clear
  View Solution play_arrow

• question_answer44)
  DIRECTIONS: Read the passage(s) given below and answer the questions that follow. Passage - 1 Respiration is the basic characteristics of all living beings. It is an energy releasing reaction. In this process the living cells break down the complex high energy food molecules into simple low energy molecules by oxidation, forming carbon dioxide and water. In this a large amount of energy is released, which is used to carry out various life activities by the organism. Respiration in human beings:
  A)
  involves exchange of gases done clear
  B)
  involves inspiration and expiration done clear
  C)
  involves oxidation of glucose done clear
  D)
  all the above are correct done clear
  View Solution play_arrow

• question_answer45)
  DIRECTIONS: Read the passage(s) given below and answer the questions that follow. Passage - 1 Respiration is the basic characteristics of all living beings. It is an energy releasing reaction. In this process the living cells break down the complex high energy food molecules into simple low energy molecules by oxidation, forming carbon dioxide and water. In this a large amount of energy is released, which is used to carry out various life activities by the organism. Which type of respiration is found in yeast?
  A)
  aerobic respiration done clear
  B)
  anaerobic respiration done clear
  C)
  respiration using oxygen done clear
  D)
  none of these done clear
  View Solution play_arrow

• question_answer46)
  DIRECTIONS: Read the passage(s) given below and answer the questions that follow. Passage - 1 Respiration is the basic characteristics of all living beings. It is an energy releasing reaction. In this process the living cells break down the complex high energy food molecules into simple low energy molecules by oxidation, forming carbon dioxide and water. In this a large amount of energy is released, which is used to carry out various life activities by the organism. In the process of respiration which of the following get oxidized?
  A)
  oxalic acid                   done clear
  B)
  glucose done clear
  C)
  lactic acid                    done clear
  D)
  all of these done clear
  View Solution play_arrow

• question_answer47)
  DIRECTIONS: Read the passage(s) given below and answer the questions that follow. Passage - 2 Fermentation is a kind of anaerobic respiration done by bacteria and fungi. In it, food substrate lies outside the cell in a liquid medium and is oxidized to form organic acids or alcohol. This process is used in the manufacture of wine. Name the process used in manufacture of wine.
  A)
  Photorespiration          done clear
  B)
  Fermentation done clear
  C)
  aerobic respiration done clear
  D)
  none of these done clear
  View Solution play_arrow

• question_answer48)
  DIRECTIONS: Read the passage(s) given below and answer the questions that follow. Passage - 2 Fermentation is a kind of anaerobic respiration done by bacteria and fungi. In it, food substrate lies outside the cell in a liquid medium and is oxidized to form organic acids or alcohol. This process is used in the manufacture of wine. The process used in manufacture of wine is a kind of
  A)
  aerobic respiration done clear
  B)
  anaerobic respiration done clear
  C)
  process in which no energy is produced done clear
  D)
  none of the above done clear
  View Solution play_arrow

• question_answer49)
  DIRECTIONS: Read the passage(s) given below and answer the questions that follow. Passage - 2 Fermentation is a kind of anaerobic respiration done by bacteria and fungi. In it, food substrate lies outside the cell in a liquid medium and is oxidized to form organic acids or alcohol. This process is used in the manufacture of wine. Yeast is
  A)
  an anaerobe done clear
  B)
  a single celled organism done clear
  C)
  both the above are correct done clear
  D)
  none of the above is correct done clear
  View Solution play_arrow

• question_answer50)
  DIRECTIONS: Read the passage(s) given below and answer the questions that follow. Passage - 3 Plants also respire. They have small openings through which gaseous exchange take place. The roots take in air present in soil. The breakdown of glucose in plant cell is similar to that in other lining beings. The tiny pores present in plants are called
  A)
  holes                            done clear
  B)
  stigmata done clear
  C)
  stomata        done clear
  D)
  spiracles done clear
  View Solution play_arrow

• question_answer51)
  DIRECTIONS: Read the passage(s) given below and answer the questions that follow. Passage - 3 Plants also respire. They have small openings through which gaseous exchange take place. The roots take in air present in soil. The breakdown of glucose in plant cell is similar to that in other lining beings. Plants take in _____ gas during respiration
  A)
  oxygen             done clear
  B)
  carbon dioxide done clear
  C)
  nitrogen          done clear
  D)
  water vapour done clear
  View Solution play_arrow

• question_answer52)
  DIRECTIONS: Read the passage(s) given below and answer the questions that follow. Passage - 3 Plants also respire. They have small openings through which gaseous exchange take place. The roots take in air present in soil. The breakdown of glucose in plant cell is similar to that in other lining beings. Roots take up air from _____.
  A)
  lenticels            done clear
  B)
  stomata done clear
  C)
  air spaces        done clear
  D)
  spiracles done clear
  View Solution play_arrow

• question_answer53)
  DIRECTIONS: Read the passage(s) given below and answer the questions that follow. Passage - 4 Lungs are present in chest cavity. This cavity is surrounded by ribs on the sides. A large muscular sheet called diaphragm form the floor of the chest cavity. During inhalation the ribs move ____ and diaphragm moves ______.
  A)
  down, up        done clear
  B)
  up, down done clear
  C)
  up, up                          done clear
  D)
  down, down done clear
  View Solution play_arrow

• question_answer54)
  DIRECTIONS: Read the passage(s) given below and answer the questions that follow. Passage - 4 Lungs are present in chest cavity. This cavity is surrounded by ribs on the sides. A large muscular sheet called diaphragm form the floor of the chest cavity. Wind pipe is also called ______
  A)
  lungs                            done clear
  B)
  pharynx done clear
  C)
  larynx                           done clear
  D)
  trachea done clear
  View Solution play_arrow

• question_answer55)
  DIRECTIONS: Read the passage(s) given below and answer the questions that follow. Passage - 4 Lungs are present in chest cavity. This cavity is surrounded by ribs on the sides. A large muscular sheet called diaphragm form the floor of the chest cavity. Percentage of oxygen in inhaled air is ____ in exhaled air.
  A)
  less than           done clear
  B)
  more than done clear
  C)
  same as          done clear
  D)
  cannot say done clear
  View Solution play_arrow

• question_answer56)
  DIRECTIONS: The questions in this segment consists of two statements, one labelled as "Assertion A" and the other labelled as "Reason R". You are to examine these two statements carefully and decide if the Assertion A and Reason R are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below. Assertion (A): Breathing in and out is a simple physical process. Reason (R): Breathing occurs only in animals and not in plants.
  A)
  Both A and R is true and R is the correct explanation of A. done clear
  B)
  Both A and R is true but R is not the correct explanation of A. done clear
  C)
  A is true but R is false. done clear
  D)
  A is false but R is true. done clear
  View Solution play_arrow

• question_answer57)
  DIRECTIONS: The questions in this segment consists of two statements, one labelled as "Assertion A" and the other labelled as "Reason R". You are to examine these two statements carefully and decide if the Assertion A and Reason R are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below. Assertion (A): Yeast is a single celled organism that can respire an aerobically. Reason (R): Yeast is used to make wine and beer.
  A)
  Both A and R is true and R is the correct explanation of A. done clear
  B)
  Both A and R is true but R is not the correct explanation of A. done clear
  C)
  A is true but R is false. done clear
  D)
  A is false but R is true. done clear
  View Solution play_arrow

• question_answer58)
  DIRECTIONS: The questions in this segment consists of two statements, one labelled as "Assertion A" and the other labelled as "Reason R". You are to examine these two statements carefully and decide if the Assertion A and Reason R are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below. Assertion (A): When our muscle cells respire an aerobically cramps occur. Reason (R): The accumulation of lactic acid causes cramps
  A)
  Both A and R is true and R is the correct explanation of A. done clear
  B)
  Both A and R is true but R is not the correct explanation of A. done clear
  C)
  A is true but R is false. done clear
  D)
  A is false but R is true. done clear
  View Solution play_arrow

• question_answer59)
  DIRECTIONS: The questions in this segment consists of two statements, one labelled as "Assertion A" and the other labelled as "Reason R". You are to examine these two statements carefully and decide if the Assertion A and Reason R are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below. Assertion (A): When we breathe fast we inhale more oxygen. Reason (R): When we inhale air it passes through nasal cavity.
  A)
  Both A and R is true and R is the correct explanation of A. done clear
  B)
  Both A and R is true but R is not the correct explanation of A. done clear
  C)
  A is true but R is false. done clear
  D)
  A is false but R is true. done clear
  View Solution play_arrow

• question_answer60)
  DIRECTIONS: Read the following two statements carefully and choose the correct options. (i) Percentage of carbon dioxide is more in inhaled air as compared to that in exhaled air. (ii) The capacity of human lungs for air in a healthy person is 1500 ml.
  A)
  Statement (i) is correct while statement (ii) is incorrect. done clear
  B)
  Statement (ii) is correct while statement (i) is incorrect. done clear
  C)
  Both statements are correct. done clear
  D)
  Both statements are incorrect. done clear
  View Solution play_arrow

• question_answer61)
  DIRECTIONS: Read the following two statements carefully and choose the correct options. (i) Plants have special organs of respiration called tracheae. (ii) Roots breathe in air from air spaces in the soil.
  A)
  Statement (i) is correct while statement (ii) is incorrect. done clear
  B)
  Statement (ii) is correct while statement (i) is incorrect. done clear
  C)
  Both statements are correct. done clear
  D)
  Both statements are incorrect. done clear
  View Solution play_arrow

• question_answer62)
  DIRECTIONS: Read the following two statements carefully and choose the correct options. (i) Taking in of oxygen in inhalation. (ii) Breathing rate is number of inhalation and exhalation in one minute.
  A)
  Statement (i) is correct while statement (ii) is incorrect. done clear
  B)
  Statement (ii) is correct while statement (i) is incorrect. done clear
  C)
  Both statements are correct. done clear
  D)
  Both statements are incorrect. done clear
  View Solution play_arrow

• question_answer63)
  DIRECTIONS: Carefully observe pictures given below and answer the following questions. The process shown in figure represents
  A)
  Exhalation        done clear
  B)
  inhalation done clear
  C)
  Breathing        done clear
  D)
  Sneezing done clear
  View Solution play_arrow

• question_answer64)
  DIRECTIONS: Carefully observe pictures given below and answer the following questions. A graph was plotted to show the energy output at two types of respiration. Identify the type of respiration denoted by curves A and B.
  A)
  Curve 'A' represents anaerobic respiration and curve 'B' represents aerobic respiration done clear
  B)
  Curve   'A'   represents   aerobic respiration and curve 'B' represents anaerobic respiration. done clear
  C)
  Both the curves represent aerobic respiration done clear
  D)
  Both the curves represent anaerobic respiration done clear
  View Solution play_arrow

• question_answer65)
  DIRECTIONS: Carefully observe pictures given below and answer the following questions. In the test-tubes 'A' and 'B' shown below, yeast was kept in sugar solution. The products of respiration expected in tube 'A' are
  A)
  Ethanol and carbon dioxide done clear
  B)
  Carbon dioxide and water done clear
  C)
  Lactic acid done clear
  D)
  None of these done clear
  View Solution play_arrow

• question_answer66)
  Choose the correct order for travel of air through various organs or respiratory system.
  A)
  Nostrils\[\xrightarrow{{}}\]larynx \[\xrightarrow{{}}\]trachea done clear
  B)
  Nostroils\[\xrightarrow{{}}\] trachea\[\xrightarrow{{}}\]larynx done clear
  C)
  Nostrils\[\xrightarrow{{}}\]larynx\[\xrightarrow{{}}\]lungs done clear
  D)
  None of these done clear
  View Solution play_arrow

• question_answer67)
  Which one is true about cellular respiration?
  A)
  It takes place in cells of all organisms done clear
  B)
  It is the process of breakdown of food in the cell with the release of energy done clear
  C)
  In it the products formed are carbon dioxide and water done clear
  D)
  all these are correct done clear
  View Solution play_arrow

• question_answer68)
  During increased physical activity
  A)
  the rate of breathing increases and becomes up to 25 breaths per minute done clear
  B)
  the rate of breathing decreases and becomes up to 25 breaths per minute done clear
  C)
  the rate of breath remains unchanged and is the same as that at the time of rest done clear
  D)
  none of these done clear
  View Solution play_arrow

• question_answer69)
  Which of the following represents the respiration process in yeast?
  A)
   \[\text{Glucose}\xrightarrow{\text{use of oxygen}}\]Carbon dioxide + water + energy done clear
  B)
   \[\text{Glucose}\xrightarrow{\text{use of oxygen}}\]Lactic acid + energy done clear
  C)
   \[\text{Glucose}\xrightarrow{\text{Without use of oxygen}}\]Lactic acid + energy done clear
  D)
   \[\text{Glucose}\xrightarrow{\text{Without use of oxygen}}\]alcohol + carbon dioxide + energy. done clear
  View Solution play_arrow

• question_answer70)
  There is a layer of wax on the leaves of the lily, which prevents water collecting on them and causing them to drown. In what way do they get gases needed by them for breathing?
  A)
  They get the needed gases from water on which they float. done clear
  B)
  They breathe through the flowers they produce. done clear
  C)
  They require no gas to live. done clear
  D)
  They can move their leaves above water regularly for exchange of gases. done clear
  View Solution play_arrow

• question_answer71)
  In it are present lungs. It is surrounded on its sides by ribs and diaphragm forms its floor. It is
  A)
  chest cavity    done clear
  B)
  windpipe done clear
  C)
  both the above             done clear
  D)
  none of these done clear
  View Solution play_arrow

• question_answer72)
  Spiracles are
  A)
  the air tubes of insects done clear
  B)
  the breathing part of frogs. done clear
  C)
  the openings on plant leaves done clear
  D)
  none of these done clear
  View Solution play_arrow

• question_answer73)
  Ribs are
  A)
  A part of the human respiratory system done clear
  B)
  Skeletal structures surrounding the chest cavity done clear
  C)
  Muscular floor of chest cavity done clear
  D)
  none of these done clear
  View Solution play_arrow

• question_answer74)
  Tracheae are
  A)
  A network of air tubes in insects for exchange of gases done clear
  B)
  small openings on the body of insects done clear
  C)
  both the above are correct done clear
  D)
  none of these is correct done clear
  View Solution play_arrow

• question_answer75)
  Why does a hot water bath or massage gives relief from cramps?
  A)
  it increases the circulation of blood done clear
  B)
  it increases the supply of oxygen t muscles done clear
  C)
  it results in complete breakdown of lactic acid. done clear
  D)
  all the above are correct done clear
  View Solution play_arrow

• question_answer76)
  The number of ATP released during anaerobic respiration is
  A)
   1                                 done clear
  B)
   2 done clear
  C)
   3                                 done clear
  D)
   4 done clear
  View Solution play_arrow

• question_answer77)
  Respiration is a/an ______ process.
  A)
  anabolic          done clear
  B)
  metabolic done clear
  C)
  catabolic         done clear
  D)
  none of these done clear
  View Solution play_arrow

• question_answer78)
  Lenticels are found in
  A)
  the root                        done clear
  B)
  the stem done clear
  C)
  Both stem and root      done clear
  D)
  none of these done clear
  View Solution play_arrow

• question_answer79)
  In humans, which of the following structures is analogous to spiracles of cockroach?
  A)
  Lungs                           done clear
  B)
  alveoli done clear
  C)
  nostrils             done clear
  D)
  Bronchioles done clear
  View Solution play_arrow

• question_answer80)
  In cockroach, the tracheal system opens in the outside through
  A)
  mouth                          done clear
  B)
  anus done clear
  C)
  stigmata           done clear
  D)
  pores done clear
  View Solution play_arrow

• question_answer81)
  In unicellular organisms oxygen is
  A)
  absorbed through lungs done clear
  B)
  absorbed through alveoli done clear
  C)
  diffused into cell done clear
  D)
  absorbed by spiracles done clear
  View Solution play_arrow

• question_answer82)
  Which of these have lungs?
  A)
  starfish             done clear
  B)
  earthworm done clear
  C)
  rabbit                           done clear
  D)
  cockroach done clear
  View Solution play_arrow

• question_answer83)
  The short tube leading from the nose is
  A)
  trachea            done clear
  B)
  alveoli done clear
  C)
  bronchi            done clear
  D)
  pharynx done clear
  View Solution play_arrow

• question_answer84)
  Whales and dolphins often come up to water surface to
  A)
  swim                            done clear
  B)
  breathe done clear
  C)
  Catch food                   done clear
  D)
  get sunlight done clear
  View Solution play_arrow

• question_answer85)
  What will happen to lime water when we exhale air into it?
  A)
  remains same  done clear
  B)
  turns milky done clear
  C)
  becomes colorless        done clear
  D)
  turns blue done clear
  View Solution play_arrow

• question_answer86)
  Roots respire through
  A)
  lenticels            done clear
  B)
  stomata done clear
  C)
  spiracles          done clear
  D)
  Air spaces done clear
  View Solution play_arrow

• question_answer87)
  In anaerobic respiration, pyruvic acid in muscles form
  A)
  alcohol                         done clear
  B)
  glucose done clear
  C)
  lactic acid        done clear
  D)
  none of these done clear
  View Solution play_arrow

• question_answer88)
  The function of hair follicles inside the nose is to
  A)
  to moisten the air done clear
  B)
  to control the amount of air being inhaled done clear
  C)
  to detect the presence of oxygen done clear
  D)
  to trap germs and dust particles in air. done clear
  View Solution play_arrow

• question_answer89)
  DIRECTIONS: Match column I with column II and select the correct answers using the code given below the columns.

  Column-I	Column-II
  (A) Yeast	(i) Earthworm
  (B) Diaphragm	(ii) Alcohol
  (C) Skin	(iii) Chest cavity
  (D) Fish	(iv) gills

  A)
  (A) \[\to \] (i), (B) \[\to \] (ii), (C) \[\to \] (iii), (D) \[\to \] (iv) done clear
  B)
  (A) \[\to \] (ii), (B) \[\to \] (iii), (C) \[\to \] (i), (D) \[\to \] (iv) done clear
  C)
  (A) \[\to \] (iii), (B) \[\to \] (iv), (C) \[\to \] (i), (D) \[\to \] (ii) done clear
  D)
  (A) \[\to \] (iv), (B) \[\to \] (i), (C) \[\to \] (ii), (D) \[\to \] (iii) done clear
  View Solution play_arrow

• question_answer90)
  DIRECTIONS: Match column I with column II and select the correct answers using the code given below the columns.

  Column-I	Column-II
  (A) Earth worm	(i) Pulmonary
  (B) Human	(ii) Bronchial
  (C) Prawn	(iii) Tracheal
  (D) Insects	(iv) coetaneous

  A)
  (A) \[\to \] (i), (B) \[\to \] (ii), (C) \[\to \] (iii), (D) \[\to \] (iv) done clear
  B)
  (A) \[\to \] (iv), (B) \[\to \] (i), (C) \[\to \] (ii), (D) \[\to \] (iii) done clear
  C)
  (A) \[\to \] (iii), (B) \[\to \] (ii), (C) \[\to \] (iv), (D) \[\to \] (i) done clear
  D)
  (A) \[\to \] (iv), (B) \[\to \] (ii), (C) \[\to \] (i), (D) \[\to \] (iii) done clear
  View Solution play_arrow

• question_answer91)
  DIRECTIONS: Match column I with column II and select the correct answers using the code given below the columns.

  Column-I	Column-II
  (A) Cellular respiration	(i) The process of breakdown of food in the cell with release of energy
  (B) Aerobic respiration	(ii) Anaerobe.
  (C) Anaerobic respiration	(iii) The process of breakdown of glucose with use of oxygen.
  (D) Yeast	(iv) the process of breakdown of glucose without use of oxygen

  A)
  (A) \[\to \] (i), (B) \[\to \] (ii), (C) \[\to \] (iii), (D) \[\to \] (iv) done clear
  B)
  (A) \[\to \] (ii), (B) \[\to \] (i), (C) \[\to \] (iii), (D) \[\to \] (iv) done clear
  C)
  (A) \[\to \] (i), (B) \[\to \] (iii), (C) \[\to \] (iv), (D) \[\to \] (ii) done clear
  D)
  (A) \[\to \] (i), (B) \[\to \] (iv), (C) \[\to \] (ii), (D) \[\to \] (iii) done clear
  View Solution play_arrow

• question_answer92)
  DIRECTIONS: Match column I with column II and select the correct answers using the code given below the columns.

  Column-I	Column-II
  (A) Cutaneous	(i) amoeba
  (B) Tracheal	(ii) frog
  (C) Diffusion	(iii) cockroach
  (D) Pulmonary	(iv) elephant

  A)
  (A) \[\to \] (r), (B) \[\to \] (p), (C) \[\to \] (s), (D) \[\to \] (r) done clear
  B)
  (A) \[\to \] (q), (B) \[\to \] (r), (C) \[\to \] (p), (D) \[\to \] (s) done clear
  C)
  (A) \[\to \] (q), (B) \[\to \] (p), (C) \[\to \] (s), (D) \[\to \] (r) done clear
  D)
  (A) \[\to \] (r), (B) \[\to \] (p, q), (C) \[\to \] (p), (D) \[\to \] (s) done clear
  View Solution play_arrow

• question_answer93)
  DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 1 Fig. Model to show mechanism of breathing. The figure shows a plastic bottle whose bottom has been removed. A tube has been passed by making a hole in its lid. To the forked ends of this tube are attached two deflated balloons. The bottle is sealed in such a way that it becomes air-tight. What do balloons in this figure represent?
  A)
  breathing        done clear
  B)
  respiration done clear
  C)
  lungs                done clear
  D)
  none of these done clear
  View Solution play_arrow

• question_answer94)
  DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 1 Fig. Model to show mechanism of breathing. The figure shows a plastic bottle whose bottom has been removed. A tube has been passed by making a hole in its lid. To the forked ends of this tube are attached two deflated balloons. The bottle is sealed in such a way that it becomes air-tight. During breathing
  A)
  there is no change in chest cavity done clear
  B)
  there is no change in the composition of gases inhaled and exhaled done clear
  C)
  breathing is a continuous process done clear
  D)
  all the above are correct done clear
  View Solution play_arrow

• question_answer95)
  DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 1 Fig. Model to show mechanism of breathing. The figure shows a plastic bottle whose bottom has been removed. A tube has been passed by making a hole in its lid. To the forked ends of this tube are attached two deflated balloons. The bottle is sealed in such a way that it becomes air-tight. What do we inhale?
  A)
  Oxygen done clear
  B)
  Carbon dioxide done clear
  C)
  A mixture of gases done clear
  D)
  None of these done clear
  View Solution play_arrow

• question_answer96)
  DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 2 We obtain energy by aerobic respiration. But anaerobic respiration can sometimes take place in our muscles during vigorous physical exercise when oxygen gets used up faster in the muscle cells than can be supplied by the blood. The accumulation of_____ in the muscles causes muscle cramps
  A)
  glucose             done clear
  B)
  water done clear
  C)
  lactic acid       done clear
  D)
  pyruvic acid done clear
  View Solution play_arrow

• question_answer97)
  DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 2 We obtain energy by aerobic respiration. But anaerobic respiration can sometimes take place in our muscles during vigorous physical exercise when oxygen gets used up faster in the muscle cells than can be supplied by the blood. Which of the following activity can give relief from cramps?
  A)
  hot water bath             done clear
  B)
  massage done clear
  C)
  Both (a) and (b)           done clear
  D)
  Sleep done clear
  View Solution play_arrow

• question_answer98)
  DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 2 We obtain energy by aerobic respiration. But anaerobic respiration can sometimes take place in our muscles during vigorous physical exercise when oxygen gets used up faster in the muscle cells than can be supplied by the blood. Why do we inhale more oxygen when we run fast?
  A)
  we breathe fast done clear
  B)
  Our heart beats faster done clear
  C)
  We need more energy done clear
  D)
  all of these done clear
  View Solution play_arrow

• question_answer99)
  DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 3 An organism X having breathing organs A lives on land. When X goes under water it cannot survive long. On the other hand organism Y with breathing organs B always lives in water and if taken out of water dies after a short time. What could organism X be? Name its breathing organ A.
  A)
  man, lungs  done clear
  B)
  fish, gills done clear
  C)
  man, skin                     done clear
  D)
  frog, lungs done clear
  View Solution play_arrow

• question_answer100)
  DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 3 An organism X having breathing organs A lives on land. When X goes under water it cannot survive long. On the other hand organism Y with breathing organs B always lives in water and if taken out of water dies after a short time. What could be the habitat of organism Y?
  A)
  terrestrial         done clear
  B)
  aquatic done clear
  C)
  amphibian                   done clear
  D)
  aeribal done clear
  View Solution play_arrow

• question_answer101)
  DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 3 An organism X having breathing organs A lives on land. When X goes under water it cannot survive long. On the other hand organism Y with breathing organs B always lives in water and if taken out of water dies after a short time. Name the breathing organ B.
  A)
  lungs                            done clear
  B)
  skin done clear
  C)
  gills             done clear
  D)
  None of these done clear
  View Solution play_arrow

• question_answer102)
  DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 4 An animal P can stay in water as well as on land and can breathe both, through moist skin and lungs. Another animal Q lives in soil and breathes only through its skin. Another animal R lives in water and breathes through cell membrane. What could be animal P?
  A)
  man                             done clear
  B)
  frog done clear
  C)
  fish           done clear
  D)
  dog done clear
  View Solution play_arrow

• question_answer103)
  DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 4 An animal P can stay in water as well as on land and can breathe both, through moist skin and lungs. Another animal Q lives in soil and breathes only through its skin. Another animal R lives in water and breathes through cell membrane. What could be animal Q?
  A)
  frog                              done clear
  B)
  man done clear
  C)
  earthworm       done clear
  D)
  cockroach done clear
  View Solution play_arrow

• question_answer104)
  DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 4 An animal P can stay in water as well as on land and can breathe both, through moist skin and lungs. Another animal Q lives in soil and breathes only through its skin. Another animal R lives in water and breathes through cell membrane. What could be animal R?
  A)
  frog                              done clear
  B)
  fish done clear
  C)
  whale                           done clear
  D)
  amoeba done clear
  View Solution play_arrow

• question_answer105)
  DIRECTIONS: The questions in this segment consists of two statements, one labelled as "Assertion A" and the other labelled as "Reason R". You are to examine these two statements carefully and decide if the Assertion A and Reason R are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below. Assertion (A): During physical exercise the breathing rate of a person slows down. Reason (R): Our body requires less oxygen during any kind of physical activity.
  A)
  Both A and R are true and R is the correct explanation of A. done clear
  B)
  Both A and R are true but R is not the correct explanation of A. done clear
  C)
  A is true but R is false. done clear
  D)
  A is false but R is true. done clear
  View Solution play_arrow

• question_answer106)
  DIRECTIONS: The questions in this segment consists of two statements, one labelled as "Assertion A" and the other labelled as "Reason R". You are to examine these two statements carefully and decide if the Assertion A and Reason R are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below. Assertion (A): Fish cannot live outside water. Reason (R): Fish breathe through gills.
  A)
  Both A and R are true and R is the correct explanation of A. done clear
  B)
  Both A and R are true but R is not the correct explanation of A. done clear
  C)
  A is true but R is false. done clear
  D)
  A is false but R is true. done clear
  View Solution play_arrow

• question_answer107)
  DIRECTIONS: The questions in this segment consists of two statements, one labelled as "Assertion A" and the other labelled as "Reason R". You are to examine these two statements carefully and decide if the Assertion A and Reason R are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below. Assertion (A): Sneezing expels dust particles from inhaled air. Reason (R): There are hairs inside our nose which helps in trapping the dust particles from inhaled air.
  A)
  Both A and R are true and R is the correct explanation of A. done clear
  B)
  Both A and R are true but R is not the correct explanation of A. done clear
  C)
  A is true but R is false. done clear
  D)
  A is false but R is true. done clear
  View Solution play_arrow

• question_answer108)
  DIRECTIONS: The questions in this segment consists of two statements, one labelled as "Assertion A" and the other labelled as "Reason R". You are to examine these two statements carefully and decide if the Assertion A and Reason R are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below. Assertion (A): In plants each part can independently take in oxygen from air and give out oxygen. Reason (R): In plants the roots take in air present in soil.
  A)
  Both A and R are true and R is the correct explanation of A. done clear
  B)
  Both A and R are true but R is not the correct explanation of A. done clear
  C)
  A is true but R is false. done clear
  D)
  A is false but R is true. done clear
  View Solution play_arrow

• question_answer109)
  DIRECTIONS: Read the following three statements and choose the correct answer. (i) In earthworms the gaseous exchange take place through the moist skin. (ii) Tracheae and spiracles are present in frogs (iii) Fish breathe through gills.
  A)
  Statement (i) and (iii) are incorrect but (ii) is correct done clear
  B)
  Statement (i) and (ii) are incorrect but (iii) is correct done clear
  C)
  All statements are correct done clear
  D)
  All statements are incorrect done clear
  View Solution play_arrow

• question_answer110)
  DIRECTIONS: Read the following three statements and choose the correct answer. (i) In insects, the circulatory fluid help to distribute oxygen to tissues. (ii) The process of respiration in yeast is anaerobic (iii) Anaerobic respiration causes cramps in muscles.
  A)
  Statement (i) and (iii) are incorrect but (ii) is correct done clear
  B)
  Statement (i) and (ii) are incorrect but (iii) is correct done clear
  C)
  All statements are correct done clear
  D)
  All statements are incorrect done clear
  View Solution play_arrow

• question_answer111)
  DIRECTIONS: Read the following three statements and choose the correct answer. (i) In anaerobic respiration, glucose is broken down into carbon dioxide and alcohol (ii) In anaerobic respiration, pyruvic acid in muscles from alcohol. (iii) Energy is not released in anaerobic Respiration.
  A)
  Statement (i) and (iii) are incorrect but (ii) is correct done clear
  B)
  Statement (i) and (ii) are incorrect but (iii) is correct done clear
  C)
  All statements are correct done clear
  D)
  All statements are incorrect done clear
  View Solution play_arrow

• question_answer112)
  DIRECTIONS: Carefully observe pictures given below and answer the following questions. Look at the image given below and answer the questions that follow. The part diaphragm is marked as
  A)
  A                                  done clear
  B)
  B done clear
  C)
  C                                 done clear
  D)
  D done clear
  View Solution play_arrow

• question_answer113)
  DIRECTIONS: Carefully observe pictures given below and answer the following questions. Look at the image given below and answer the questions that follow. The part labeled as 'B' is __________.
  A)
  Lung                            done clear
  B)
  Diaphragm done clear
  C)
  Trachea             done clear
  D)
  Bronchiole done clear
  View Solution play_arrow

• question_answer114)
  DIRECTIONS: Carefully observe pictures given below and answer the following questions. Look at the image given below and answer the questions that follow. Which part contains alveoli?
  A)
  A        done clear
  B)
  B done clear
  C)
  C                                 done clear
  D)
  D done clear
  View Solution play_arrow

• question_answer115)
  DIRECTIONS: Carefully observe pictures given below and answer the following questions. Identify the parts labeled as C and D.
  A)
  C = trachea, D = alveolus done clear
  B)
  C = larynx, D = trachea done clear
  C)
  C = alveolus, D = larynx done clear
  D)
  C = larynx, D = bronchus done clear
  View Solution play_arrow