CBSE Class 11 Biology Digestion and Absorption Worksheet Set A

Question. Liver in our body stores 
(a) Vitamin A
(b) Vitamin D
(c) Vitamin B12
(d) All of these
Answer. D

Question. Vitamin C is also called as 
(a) ascorbic acid
(b) glutamic acid
(c) aspartic acid
(d) enolic acid
Answer. A

Question. Wharton’s duct is the duct of
(a) Parotid gland
(b) Sublingual gland
(c) Submaxillary gland
(d) Pancreatic gland
Answer. C

Question. Continued consumption of a diet rich in butter, red meat and eggs for a long period may lead to
(a) vitamin A toxicity 
(b) kidney stones
(c) hypercholesterolemia
(d) urine laden with ketone bodies
Answer. C

Question. Curdling of milk in small intestine takes place due to 
(a) rennin
(b) trypsin
(c) chymotrypsin
(d) ptyalin
Answer. A

Question. Tocopherol stands for 
(a) Vitamin A
(b) Vitamin E
(c) Vitamin C
(d) Vitamin K
Answer. B

Question. Endoscopy, a technique used to explore the stomach or other inner parts of the body, is based on the phenomenon of 
(a) total internal reflection
(b) interference
(c) diffraction
(d) polarization
Answer. A

Question. If for some reason the parietal cells of the gut epithelium become partially non-funcitonal, what is likely to happen? 
(a) The pancreatic enzymes and specially the trypsin and lipase will not work efficiently
(b) The pH of stomach will fall abruptly
(c) Steapsin will be more effective
(d) Proteins will not be adequately hydrolysed by pepsin into proteoses and peptones
Answer. D

Question. A healthy person eats the following diet - 5 gm raw sugar, 4 gm albumin, 10 gm pure buffalo ghee adultrated with 2 gm vegetable ghee
(hydrogenated vegetable oil) and 5 gm lignin.How many calories he is likely to get?
(a) 144
(b) 126
(c) 164
(d) 112
Answer. A

Question. Which of the following statement is true ?
(a) Pepsin cannot digest casein.
(b) Trypsin can digest collagen.
(c) Pepsin cannot digest collagen.
(d) Chymotrypsin can digest casein.
Answer. D

Question. Scurvy is caused due to deficiency of vitamin
(a) A
(b) B 
(c) E
(d) C
Answer. D

Question. Which of the following has minimum pH?
(a) Bile
(b) Saliva
(c) Gastric juice
(d) Pancreatic juice
Answer. C

Question. Which one of the following pairs of the kind of cells and their secretion are correctly matched?
(a) Oxyntic cells – A secretion with pH between 2.0 and 3.0
(b) Alpha cells – Secretion of of (Nutrition) Langerhans that islets decreases blood sugar level
(c) Kupffer cells – A digestive enzyme that hydrolyses nucleic acids
(d) Sebaceous – A secretion that glands evaporates for cooling
Answer. A