Solved papers for NEET Biology NEET PYQ-Breathing and Exchange Of Gases

done NEET PYQ-Breathing and Exchange Of Gases Total Questions - 33

• question_answer1) The exchange of gases in the alveoli of the lungs takes place by: [AIPMT 1998]
  A)
  osmosis
  done clear
  B)
  simple diffusion
  done clear
  C)
  passive transport
  done clear
  D)
  active transport
  done clear
  View Answer play_arrow

• question_answer2) The contraction of gall bladder is due to: [AIPMT 1998]
  A)
  gastrin
  done clear
  B)
  secretin
  done clear
  C)
  cholecystokinin
  done clear
  D)
  enterogastrone
  done clear
  View Answer play_arrow

• question_answer3) The respiratory centres which control inspiration and expiration are located in: [AIPMT 1999]
  A)
  spinal cord
  done clear
  B)
  diencephalon
  done clear
  C)
  cerebellum
  done clear
  D)
  medulla oblongata
  done clear
  View Answer play_arrow

• question_answer4) Which one of the following statements is incorrect? [AIPMT (S) 2006]
  A)
  The residual air in lungs slightly decreases the efficiency of respiration in mammals
  done clear
  B)
  The presence of non-respiratory air sacs, increases the efficiency of respiration in birds
  done clear
  C)
  In insects, circulating body fluids serve to distribute oxygen to tissues
  done clear
  D)
  The principle of countercurrent flow facilitates efficient respiration in gills of fishes
  done clear
  View Answer play_arrow

• question_answer5) The majority of carbon dioxide produced by our body cells is transported to the lungs: [AIPMT (S) 2006]
  A)
  dissolved in the blood     
  done clear
  B)
  as bircarbonates
  done clear
  C)
  as carbonates    
  done clear
  D)
  attached to haemoglobin   
  done clear
  View Answer play_arrow

• question_answer6) Increased asthmatic attacks in certain seasons are related to: [AIPMT (S) 2007]
  A)
  hot and humid environment
  done clear
  B)
  eating fruits preserved in tin containers
  done clear
  C)
  inhalation of seasonal pollen
  done clear
  D)
  low temperature
  done clear
  View Answer play_arrow

• question_answer7) Which one of the following mammalian cells is not capable of metabolising glucose to carbon-dioxide aerobically?     [AIPMT (S) 2007]
  A)
  White blood cells
  done clear
  B)
  Unstriated muscle cells
  done clear
  C)
  Liver cells
  done clear
  D)
                Red blood cells
  done clear
  View Answer play_arrow

• question_answer8) A person who is on a long hunger strike and is surviving only on water, will have: [AIPMT (S) 2007]
  A)
  more sodium in his urine
  done clear
  B)
  less amino acids in his urine
  done clear
  C)
  more glucose in his blood
  done clear
  D)
  less urea in his urine
  done clear
  View Answer play_arrow

• question_answer9) What is vital capacity of our lungs? [AIPMT (S) 2008]
  A)
  Inspiratory reserve volume plus tidal volume
  done clear
  B)
  Total lung capacity minus expiratory reserve volume
  done clear
  C)
  Inspiratory reserve volume plus expiratory reserve volume
  done clear
  D)
  None of thise
  done clear
  View Answer play_arrow

• question_answer10) The haemoglobin of a human foetus [AIPMT (S) 2008]
  A)
  has a lower affinity for oxygen than that of the adult
  done clear
  B)
  its affinity for oxygen is the same as that of an adult
  done clear
  C)
  has only 2 protein subunits instead of 4
  done clear
  D)
  has a higher affinity for oxygen than that of an adult
  done clear
  View Answer play_arrow

• question_answer11) 

  Listed below are four respiratory capacities (1 - 4) and four jumbled respiratory volumes of a normal human adult [AIPMT (S) 2010] Respiratory         Respiratory capacities           volumes (1) Residual volume 2500 mL (2) Vital capacity     -3500 mL (3) Inspiratory reserve 1200 mL volume (4) Inspiratory capacity 4500 mL Which one of the following is the correct matching of two capacities and volumes?

  A)

  (2) 2500 mL

  (3) 4500 Ml

  done clear
  B)

  (3) 1200 mL

  (4) 2500 mL

  done clear
  C)

  (4) 3500 mL	(1) 1200 mL
  done clear D) (1) 4500 mL   (2) 3500 mL   done clear View Answer play_arrow question_answer12) Which one of the following is a possibility for most of us in regard to breathing, by making a conscious effort?         [AIPMT (M) 2011] A) One can breathe out air totally without oxygen done clear B) One can breathe out air through Eustachian tubes by closing both the nose and the mouth done clear C) One can consiously breathe in and breathe out by moving the diaphragm alone, without moving the ribs at all done clear D) The lungs can be made fully empty by forcefully breathing out all air from them done clear View Answer play_arrow question_answer13) Two friends are eating together on a dining table. One of them suddenly starts coughing while swallowing some food. This coughing would have been due to improper movement of [AIPMT (S) 2011] A) diaphragm done clear B) neck done clear C) tongue done clear D) epiglottis done clear View Answer play_arrow question_answer14)  The figure given below shows a small part of human lung where exchange of gas takes place. [AIPMT (S) 2011] In which one of the options given below, the one part A, B C or D is correctly identified along with its function.                         A) A — Alveolar cavity — main site of exchange of respiratory gases done clear B) D — Capillary wall   — exchange of and takes place here done clear C) B — Red blood cell   — transport of mainly done clear D) C  — Arterial capillary —' passes oxygen to tissues  done clear View Answer play_arrow question_answer15) A large proportion of oxygen is left unsused in the human blood even after its uptake by the body tissues. This \[{{O}_{2}}\] [AIPMT (S) 2011] A) raises the \[{{p}_{C{{O}_{2}}}}\]of  blood to 75 mm of Hg done clear B) is enough to keep pxyhaemoglobin done clear C) helps in relasing more \[{{O}_{2}}\] to the epithelial tissues done clear D) acts as a reserve during muscular exercise    done clear View Answer play_arrow question_answer16) Which one of the following is the correct statement for respiration in humans? [AIPMT (S) 2012] A) Cigarette smoking may lead to inflammation of bronchi done clear B) Neural signals from pneumotoxic centre in pons region of brain can increase the duration of inspiration done clear C) Workers in grinding and stone breaking industries may suffer, from lung fibrosis done clear D) About 90% of carbon dioxide \[\text{(C}{{\text{O}}_{\text{2}}}\text{)}\]is carried by haemoglobin as carbamino haemoglobin done clear View Answer play_arrow question_answer17)  The figure shows a diagrammatic view of human respiratory system with labels A, B, C and D. Select the option, which gives correct identification and main function and/or characteristic. [NEET 2013] A) A-trachea-long   tube   supported   by complete cartilaginous rings for conducting inspired air done clear B) 6-pleural membrane-surround ribs on both sides to provide cushion against rubbing done clear C) C-alveoli-thin walled vascular bag-like structures for exchange of gases done clear D) D-lower end of lungs-diaphragm pulls it down during inspiration done clear View Answer play_arrow question_answer18) Approximately seventy percent of carbon dioxide absorbed by the blood will be transported to the lungs [NEET 2014] A) as bicarbonate ions done clear B) in the form of dissolved gas molecules done clear C) by binding to RBC done clear D) as carbamino-haemoglobin done clear View Answer play_arrow question_answer19) When you hold your breath which of the following gas changes in blood would first lead to the urge to breathe? [NEET [C] 2015] A) Falling \[{{O}_{2}}\] concentration done clear B) Rising \[C{{O}_{2}}\] concentration done clear C) Falling \[C{{O}_{2}}\] concentration done clear D) Rising \[C{{O}_{2}}\] and falling \[{{O}_{2}}\] concentration done clear View Answer play_arrow question_answer20) Golden rice is a genetically modified crop plant where the incorporated gene is meant for biosynthesis of [NEET (Re) 2015] A) vitamin-B done clear B) vitamin-C done clear C) omega 3 done clear D) vitamin-A done clear View Answer play_arrow question_answer21) Name the pulmonary disease in which alveolar surface area involved in gas exchange is drastically reduced due to damage in the alveolar walls. [NEET (Re) 2015] A) Pleurisy done clear B) Emphysema done clear C) Pneumonia done clear D) Asthma done clear View Answer play_arrow question_answer22) Name the chronic respiratory disorder caused mainly by cigarette smoking: [NEET - 2016 Phase-I] A) Emphysema done clear B) Asthma done clear C) Respiratory acidosis done clear D) Respiratory alkalosis done clear View Answer play_arrow question_answer23) Asthma may be attributed to: [NEET - 2016 Phase-I] A) Bacterial infection of the lungs done clear B) Allergic reaction of the mast cells in the lungs done clear C) Inflammation of the trachea done clear D) Accumulation of fluid in the lung done clear View Answer play_arrow question_answer24) Reduction in pH of blood will: [NEET - 2016 Phase-I] A) Reduce the rate of heart beat done clear B) Reduce the blood supply to the brain done clear C) Decrease the affinity of hemoglobin with oxygen done clear D) Release bicarbonate ions by the liver done clear View Answer play_arrow question_answer25) The partial pressure of oxygen in the alveoli of the lungs is [NEET - 2016 Phase-II] A) Equal to that in the blood done clear B) More than that in the blood done clear C) Less than that in the blood done clear D) Less than that of carbon dioxide done clear View Answer play_arrow question_answer26) Lungs do not collapse between breaths and someair always remains in the lungs which can never be expelled because [NEET - 2016 Phase-II] A) There is a negative pressure in the lungs done clear B) There is a negative intrapleural pressure pulling at the lung walls done clear C) There is a positive intrapleural pressure done clear D) Pressure in the lungs is higher than the atmospheric pressure done clear View Answer play_arrow question_answer27) Lungs are made up of air-filled sacs the alveoli. They do not collapse even after forceful expiration, because of : [NEET-2017] A) Expiratory Reserve Volume done clear B) Residual Volume done clear C) Inspiratory Reserve Volume done clear D) Tidal Volume done clear View Answer play_arrow question_answer28) Which of the following options correctly represents the lung conditions in asthma and emphysema, respectively?          [NEET - 2018] A) Increased respiratory surface; Inflammation of bronchioles done clear B) Increased number of bronchioles; Increased respiratory surface done clear C) Inflammation of bronchioles; Decreased respiratory surface done clear D) Decreased respiratory surface; Inflammation of bronchioles done clear View Answer play_arrow question_answer29) Match the items given in Column I with those in Column II and select the correct option given below:[NEET - 2018] Column - I Column - II a. Tidal volume i. 2500-3000 mL b. Inspiratory Reserve volume ii. 1100-1200 mL c. Expiratory Reserve volume iii. 500-550 mL d. Residual volume iv. 1000-1100 mL A) a-i b-iv c-ii d-iii done clear B) a-iii b-i c-iv d-ii done clear C) a-iii b-ii c-i d-iv done clear D) a-iv b-iii c-ii d-i done clear View Answer play_arrow question_answer30) Which of the following is an occupational respiratory disorder? [NEET - 2018] A) Botulism done clear B) Silicosis done clear C) Anthracis done clear D) Emphysema done clear View Answer play_arrow question_answer31) Tidal Volume and Expiratory Reserve Volume of an athlete is 500 mL and 1000 mL respectively. What will be his Expiratory Capacity if the Residual Volume is 1200 mL? [NEET 2019] A) 2200 mL done clear B) 2700 mL done clear C) 1500 mL done clear D) 1700 mL done clear View Answer play_arrow question_answer32)  Select the correct events that occur during inspiration. [NEET 2020] [a] Contraction of diaphragm [b] Contraction of external inter-costal muscles [c] Pulmonary volume decreases [d] Intra pulmonary pressure increases A) [c] and [d] done clear B) [a], [b] and [d] done clear C) only [d] done clear D) [a] and [b] done clear View Answer play_arrow question_answer33) Identify the wrong statement with reference to transport of oxygen [NEET 2020] A) Partial pressure of \[C{{O}_{2}}\] can interfere with \[{{O}_{2}}\]binding with haemoglobin done clear B) Higher \[{{H}^{+}}\]conc. in alveoli favours the formation of oxyhaemoglobin done clear C) Low \[pC{{O}_{2}}\] in alveoli favours the formation of oxyhaemoglobin done clear D) Binding of oxygen with haemoglobin is mainly related to partial pressure of \[{{O}_{2}}\] done clear View Answer play_arrow Study Package NEET PYQ-Breathing and Exchange Of Gases   Buy Now     Please Wait you are being redirected.... You need to login to perform this action. You will be redirected in 3 sec × Reset Password. 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