CBSE Class 11 Biology Digestion and Absorption Assignments

Ques. In vertebrates, lacteals are found in
(a) oesophagus (b) ear
(c) ileum (d) ischium. 

Answer: C

Ques. Which one of the following vitamins can be synthesized by bacteria inside the gut?
(a) D (b) K
(c) B1 (d) C 

Answer: C

Ques. A polysaccharide which is synthesized and stored in liver cells is
(a) arabinose (b) glycogen
(c) lactose (d) galactose. 

Answer: B

Ques. Kupffer’s cells occur in
(a) spleen (b) kidney
(c) brain (d) liver. 

Answer: D

Ques. Brunner’s glands occur in
(a) submucosa of duodenum
(b) submucosa of stomach
(c) mucosa of oesophagus
(d) mucosa of ileum. 

Answer: A

Ques. Pancreas produces
(a) three digestive enzymes and one hormone
(b) three types of digestive enzymes and two hormones
(c) two digestive enzymes and one hormone
(d) three digestive enzymes and no hormone.

Answer: B

Ques. Pancreatic juice and hormones of pancreas are produced by
(a) same cells
(b) same cells at different times
(c) statment is wrong
(d) different cells. 

Answer: D

Ques. Secretin stimulates production of
(a) saliva
(b) gastric juice
(c) bile
(d) pancreatic juice. 

Answer: D

Ques. Wharton’s duct is associated with
(a) sublingual salivary gland
(b) parotid salivary gland
(c) submaxillary salivary gland
(d) Brunner’s glands. 

Answer: C

Ques. Duct leading from parotid gland and opening into vestibule is
(a) Haversian duct
(b) Stenson’s duct
(c) Wolffian duct
(d) infra-orbital duct 

Answer: B

Ques. Lamina propria is connected with
(a) acini (b) liver
(c) Graafian follicle (d) intestine.

Answer: D

Ques. The enzyme enterokinase helps in conversion of
(a) protein into polypeptides
(b) trypsinogen into trypsin
(c) caseinogen into casein
(d) pepsinogen into pepsin.

Answer: B

Ques. Identify the cells whose secretion protects the lining of gastro-intestinal tract from various enzymes.
(a) Duodenal cells
(b) Chief cells
(c) Goblet cells
(d) Oxyntic cells 

Answer: C

Ques. Which of the following gastric cells indirectly help in erythropoiesis?
(a) Chief cells
(b) Mucous cells
(c) Goblet cells
(d) Parietal cells 

Answer: D

Ques. Which of the following options best represents the enzyme composition of pancreatic juice?
(a) Amylase, Pepsin, Trypsinogen, Maltase
(b) Peptidase, Amylase, Pepsin, Rennin
(c) Lipase, Amylase, Trypsinogen, Procarboxypeptidase
(d) Amylase, Peptidase, Trypsinogen, Rennin

Answer: C

Ques. In the stomach, gastric acid is secreted by the
(a) peptic cells
(b) acidic cells
(c) gastrin secreting cells
(d) parietal cells. 

Answer: D

Ques. The enzyme that is not present in succus entericus is
(a) nucleosidase (b) lipase
(c) maltase (d) nuclease. 

Answer: D

Ques. Gastric juice of infants contains
(a) pepsinogen, lipase, rennin
(b) amylase, rennin, pepsinogen
(c) maltase, pepsinogen, rennin
(d) nuclease, pepsinogen, lipase. 

Answer: A

Ques. Which of the following statements is not correct?
(a) Oxyntic cells are present in the mucosa of stomach and secrete HCl.
(b) Acini are present in the pancreas and secrete carboxypeptidase.
(c) Brunner’s glands are present in the submucosa of stomach and secrete pepsinogen.
(d) Goblet cells are present in the mucosa of intestine and secrete mucus.

Answer: C