done 11th Biology Digestion and Absorption

• question_answer1)
  Choose the correct answer among the following (i) Gastric juice contains (a) pepsin, lipase and rennin (b) trypsin, lipase and rennin (c) trypsin, pepsin and lipase (d) trypsin, pepsin and rennin (ii) Succus entericus is the name given to (a) a junction between ileum and large intestine (b) intestinal juice (c) swelling in the gut (d) appendix  
  View Answer play_arrow

• question_answer2)
  Match the column I with column II.  

  	Column I	Column II
  A. B. C. D.	Bilirubin and biliverdin Hydrolysis of starch Digestion of fat Salivary gland	1. Parotid 2. Bile 3. Lipase 4. Amylase

   
  View Answer play_arrow

• question_answer3)
  Answer briefly (a) Why are villi present in the intestine and not in the stomach? (b) How does pepsinogen change into its active form? (c) What are the basic layers of the wall of alimentary canal? (d) How does bile help in the digestion of fats?  
  View Answer play_arrow

• question_answer4)
  State the role of pancreatic juice in digestion of proteins. 
  View Answer play_arrow

• question_answer5)
  Describe the process of digestion of protein in stomach. 
  View Answer play_arrow

• question_answer6)
  Give the dental formula of human beings. 
  View Answer play_arrow

• question_answer7)
  Bile juice contains no digestive enzymes, yet it is important for digestion. Why? 
  View Answer play_arrow

• question_answer8)
  Describe the digestive role of chymotrypsin. Which two other digestive enzymes of the same category are secreted by its source gland? 
  View Answer play_arrow

• question_answer9)
  How are polysaccharides and disaccharides digested? 
  View Answer play_arrow

• question_answer10)
  What would happen if HCI were not secreted in the stomach? 
  View Answer play_arrow

• question_answer11)
  How does butter in your food get digested and bsorbed in the body? 
  View Answer play_arrow

• question_answer12)
  Discuss the main steps in the digestion of proteins as the food passes through different parts of the alimentary canal. 
  View Answer play_arrow

• question_answer13)
  Explain the term 'thecodont' and 'diphyodont'. 
  View Answer play_arrow

• question_answer14)
  Name different types of teeth and their number in an adult human. 
  View Answer play_arrow

• question_answer15)
  What are the functions of liver? 
  View Answer play_arrow

• question_answer16) Select what is not true of intestinal villi among following (a) they possess microvilli (b) they increase the surface area (c) they are supplied with capillaries and the lacteal vessels (d) they only participate in digestion of fats

  View Answer play_arrow

• question_answer17) Hepato-pancreatic duct opens into the duodenum and carries (a) bile                                                                  (b) pancreatic juice (c) both bile and pancreatic juice                              (d) saliva

  View Answer play_arrow

• question_answer18) One of the following is not a common disorder associated with digestive system (a) Tetanus                         (b) Diarrhoea                     (c) Jaundice                        (d) Dysentery

  View Answer play_arrow

• question_answer19) A gland not associated with the alimentary canal is (a) pancreas                       (b) adrenal                          (c) liver                                 (d) salivary glands

  View Answer play_arrow

• question_answer20) Match the following columns and select the correct among options given

  Column I		Column II
  a.	Biomacromolecules of food	1.	Alimentary canal and associated gland
  b.	Human digestive system	2.	Embedded in Jawbones ,
  c.	Stomach	3.	Outer wall of visceral organs
  d.	The codont	4.	Converted into simple substances
  e.	Serosa	5.	J-shaped bag like structure

  Codes (a) A-2/ B-1, C-5/ D-3, E-4                                             (b) A-4, B-1, C-5/ D-2/ E-3 (c) A-1/ B-2, C-3, D-4, E-5                                              (d) A-1/ B-3, C-2, 0-4, E-5

  View Answer play_arrow

• question_answer21) Match the following columns.

  Column I	Column II
  a. Duodenum	1. A cartilaginous flap
  b. Epiglottis	2. Small blind sac
  c. Glottis	3. ?U? shaped structure emerging
  d. Caecum	4. Opening of wind pipe.

  Code (a)A-'1, B-2, C-3,D-4                                                        (b) A-4, B-3, C-2, D-1 (c) A-3, B-1,  C-4, D-2                                                      (d) A-2, B-4, C-1, D-3

  View Answer play_arrow

• question_answer22) Match the enzyme with their respective substrate and choose the right one among options given

  Column I	Column II
  a. Lipase	1.Dipeptides
  b. Nuclease	2.Fats
  c. Carboxypeptidase	3.Nucleic acids
  d. Dipeptidases	4. Proteins, peptones and proteoses

  Codes (a) A-2, B-3, C-1,D-4        (b) A-3, B-4, C-2, D-1 (c) A-3, B-1, C-4, D-2       (d) A-2, B-3, C-4, D-1

  View Answer play_arrow

• question_answer23) Dental formula in human beings is (a)                                                                 (c)                               (d)

  View Answer play_arrow

• question_answer24) Liver is the largest gland and is associated with various functions, choose one which is not correct. (a) Metabolism of carbohydrate                               (b) Digestion of fat (c) Formation of bile                                                       (d) Secretion of hormone called gastrin

  View Answer play_arrow

• question_answer25) Mark the right statement among the following (a) Trypsinogen is an inactive enzyme                    (b) Trypsinogen is secreted by intestinal mucosa (c) Enterokinase is secreted by pancreas               (d) Bile contains trypsin

  View Answer play_arrow

• question_answer26) The food mixes thoroughly with the acidic gastric juice of the stomach by the churning movements of its muscular wall. What do we call the food then?

  View Answer play_arrow

• question_answer27) Trypsinogen is an inactive enzyme of pancreatic juice. An enzyme, enterokinase, activates it. Which tissue/cells secrete this enzyme?/How is it activated?

  View Answer play_arrow

• question_answer28) In which part of alimentary canal does absorption of water, simple sugars and alcohol takes place?

  View Answer play_arrow

• question_answer29) Name the enzymes involved in the breakdown of nucleotides into sugars and bases?

  View Answer play_arrow

• question_answer30) Define digestion in one sentence.

  View Answer play_arrow

• question_answer31) What do we call the type of teeth attachment to jaw bones in which each tooth is embedded in a socket of jaws bones?

  View Answer play_arrow

• question_answer32) Stomach is Located in upper left portion of the abdominal cavity and has three major parts. Name these three parts.

  View Answer play_arrow

• question_answer33) Does gall bladder make bile?

  View Answer play_arrow

• question_answer34) Correct the following statements by deleting one of entries (given in bold). (a) Goblet cells are located in the intestinal mucosal epithelium and secrete chymotrypsin/mucus. (b) Fats are broken down into di-and monoglycerides with the help of amylase/li pases. (c) Gastric glands of stomach mucosa have oxyntic cell/chief cells which secrete HCl. (d) Saliva contains enzymes that digest starch/protein

  View Answer play_arrow

• question_answer35) What is pancreas? Mention the major secretions of pancreas that are helpful in digestion.

  View Answer play_arrow

• question_answer36) Name the part of the alimentary canal where major absorption of digested food takes place. What are the absorbed forms of different kinds of food materials?

  View Answer play_arrow

• question_answer37) List the organs of human alimentary canal and name the major digestive glands with their location.

  View Answer play_arrow

• question_answer38) What is the role of gall bladder? What may happen if it stops functioning or is removed?

  View Answer play_arrow

• question_answer39) Correct the statements given below by the right option shown in the bracket against them. Absorption of amino acids and glycerol takes place in the (small intestine/ large intestine). (b) The faeces in the rectum initiate a reflex causing an urge for its removal (neural/hormonal). (c) Skin and eyes turn yellow in infection (liver/stomach). (d) Rennin is a proteolytic enzyme found in gastric juice in (infants/ adults). (e) Pancreatic juice and bile are released through (intestine pancreatic/ hepato-pancreatic duct). (f) Dipeptides, disaccharides and glycerides are broken down into simple substances in region of small intestines (jejunum/ duodenum).

  View Answer play_arrow

• question_answer40) What are three major types of cells found in the gastric glands? Name their secretions.

  View Answer play_arrow

• question_answer41) How is the intestinal mucosa protected from the acidic food entering from stomach?

  View Answer play_arrow

• question_answer42) How are the activities of gastro-intestinal tract regulated?

  View Answer play_arrow

• question_answer43) Distinguish between constipation and indigestion. Mention their major causes.

  View Answer play_arrow

• question_answer44) Describe the enzymatic action on fats in the duodenum.

  View Answer play_arrow

• question_answer45) A person had roti and dal for his lunch. Trace the changes in those during its passage through the alimentary canal.

  View Answer play_arrow

• question_answer46) What are the various enzymatic types of glandular secretions in our gut helping digestion of food? What is the nature of end products obtained after complete digestion of food?

  View Answer play_arrow

• question_answer47) Discuss mechanisms of absorption.

  View Answer play_arrow

• question_answer48) Discuss the role of hepato-pancreatic complex ^'n digestion of carbohydrate, protein and fat components of food.

  View Answer play_arrow

• question_answer49) Explain the process of digestion in the buckle cavity with a note on the arrangement of teeth.

  View Answer play_arrow