CBSE Class 11 Biology Digestion and Absorption MCQs Set 04

Question: Common bile duct consists of
a) Cystic duct and hepatic duct
b) Only hepatic duct
c) Duct of salivary gland and hepatic duct
d) Does not exists
Answer: a

Question: Which of the following is not the function of large intestine?
a) Absorption of some water, minerals and certain drugs.
b) Nutrient absorption
c) Secretion of mucus to lubricate faeces
d) Temporary storage of faeces in rectum
Answer: b

Question: Faeces enters into caecum of large intestine through
a) Ileo-caecal valve
b) Pyloric sphincter
c) Cardiac sphincter
d) Gastro-intestinal
Answer: a

Question: Crypts in between the bases of villi in the intestine are called
a) Crypts of leiberkuhn
b) Lacteal
c) Microvili
d) None of these
Answer: a

Question: _____ converts proteins into proteoses and peptones
a) Pepsin
b) Rennin
c) Insulin
d) Lipases
Answer: a

Question: Thin Connective tissue sheath that covers hepatic lobules are called
a) Hepatic cells
b) Mesothelium
c) Epiderm
d) Glissons capsule
Answer: d

Question: Which of the following statement is incorrect?
I. Absorption of simple sugar, alcohol, some water and medicines takes place in stomach.
II. Maximum water absorption occurs in small intestine.
III. Small intestine is the major site of digestion and absorption of food.
IV. Fatty acid and glycerol are absorbed by lacteals.
V. Nothing is absorbed in mouth and large intestine.
a) I, IV and V
b) V
c) IV
d) II and III
Answer: b

Question: Exocrine part of pancreas secrete
a) Alkaline pancreatic juice
b) Neutral pacnreatic juice
c) Hormones – insulin and glucagon
d) Succus entericus
Answer: a

Question: The _____ are the structural and functional units of liver
a) Hepatic cells
b) Neuron
c) Nephron
d) Hepatic lobules
Answer: d

Question: Process by which the end products of digestion pass through the intestinal mucosa into the blood or lymph is called
a) Digestion
b) Deglutition
c) Absorption
d) Indigestion
Answer: c

Question: Match the columns and choose the correct option :-
        Column-I                 Column-II
A Salivary amylase            I Proteins
B Bile Salts                      II Milk protein
C Rennin                        III Starch
D Pepsin                         IV Lipids
a) A-III, B-IV, C-II, D-I
b) A-III, B-IV, C-I, D-II
c) A-IV, B-III, C-II, D-I
d) A-I, B-II, C-III, D-IV
Answer: a

Question: _____ % of starch is hydrolyzed in mouth
a) 30
b) 40
c) 100
d) 0
Answer: a

Question: The enzymes in _____ breakdown food in the simplest and absorbable form
a) Succus entericus
b) Pancreatic juice
c) Saliva
d) None of these
Answer: a

Question: Starch is broken into _____ by the action of salivary amylase
a) Maltose
b) Lactose
c) Sucrose
d) Fructose
Answer: a

Question: In addition to neural control, hormones also influence the :-
a) gastric secretions
b) intestinal secretions
c) muscular activities of different parts of alimentary canal
d) All of the options
Answer: d

Question: Small amounts of _____ are also secreted by gastric glands.
a) Pepsin
b) Rennin
c) Insulin
d) Lipases
Answer: d

Question: Proteins, peptones and proteoses is converted into dipeptides by the action of
a) Trypsin
b) Chymotrypsin
c) Carboxypeptidase
d) All of these
Answer: d

Question: Which of the following is activated by bile
a) Pepsin
b) Rennin
c) Insulin
d) Lipases
Answer: d

Question: Which of the following statement is incorrect?
a) Faecal accumulation in the rectum initiates a neural reflex causing an urge for its removal.
b) Reflex action for vomiting is controlled by medulla.
c) Irregular bowel movements causes constipation
d) In diarrhoea the absorption of food get enhanced
Answer: d

Question: Oxyntic cells secrete
a) Mucus
b) Pepsinogen
c) HCL and intrinsic factor
d) None of these
Answer: c

Question: Mucus in saliva helps in lubricating and adhering the masticated food particles into a _____
a) Bolus
b) Chyme
c) Deglutition
d) None of the above
Answer: a

Question: Enterokinase is secreted by
a) Intestinal mucosa
b) Mucosa of stomach
c) Submucosa
d) Serosa
Answer: a

Question: Which of the following statement is false ?
a) The break down of most of biomacromolecules occurs in duodenum.
b) Simple substances (digested foods) are absorbed in the jejunum and ileum.
c) Very significant digestive acitivity occurs in large intestine.
d) Undigested and unabsorbed substances are passed into the large intestine.
Answer: c

Question: Three pairs of salivary glands are
a) Submaxillary, parotids, sublingual
b) Parotid, submaxillary, submandibular
c) Sublingual, submandibular, submaxillary
d) None of these
Answer: a

Question: Bolus mixed with acidic gastric juices reaching down to small intestine is called
a) Rennin
b) Enzyme
c) Chyme
d) Bolus only
Answer: c

Question: _____ is/are absorbed with the help of carried ion
a) Fructose
b) Amino acids
c) Both (a) and (b)
d) Water
Answer: c