NCERT digestion absorption MCQs,PDF,mock,model Biology Exam NEET

Digestion and Absorption Mock Exam-7

Question No:1

Protection of mucosal epithelium from highly cone. HCI in stomach is performed by
A. HCO3– Ion
B. Mucus
C. Pepsin
D. Intrinsic factor

[A] A and C only
[B] B only
[C] A and B only
[D] A, Band C only

Question No:2

Optimal pH for pepsin is

[A] 6.8
[B] 1.8
[C] 3.8
[D] 6

Question No:3

Which of the following is incorrect about gastric juice?

[A] Gastric juice of an infant contain Rennin
[B] Small amount of lipase is present
[C] Gastric juice is secreted by gastric glands
[D] Rennin doesn’t help in digestion of milk protein present in gastric juice of infant.

Question No:4

Which of the following is released in small intestine?

[A] Bile juice
[B] Pancreatic juice
[C] Intestinal juice
[D] All

Question No:5

Bile and pancreatic juice is released in small intestine by

[A] Cystic duct
[B] Bile duct
[C] Pancreatic duct
[D] Hepatic-pancreatic duct

Question No:6

Select from the following the total number of enzyme secreted by the pancrease.
Trypsinogen, Amylase, Lipase, Pepsinogen, Prorennin, Maltase, Sucrase, Chymotrypsinogen,Procarboxypeptidase, Nucleases.

[A] 4
[B] 5
[C] 6
[D] 7

Question No:7

Trypsinogen is activated by

[A] Enterokinase
[B] chymotrypsin
[C] Rennin
[D] Acidic pH

Question No:8

Which enzyme activates other enzymes in pancreatic juice?

[A] Enterokinase
[B] chymotrypsin
[C] Trypsin
[D] lipase

Question No:9

Enterokinase is secreted by

[A] mouth
[B] stomach
[C] small intestine
[D] large intestine

Question No:10

Bile juice contains all except

[A] Bilirubin and biliverdin
[B] Bile salts and cholesterol
[C] Phospholipids
[D] Enzymes

Question No:11

Which of the following is incorrect about bile?

[A] It contains bilirubin and biliverdin which is waste product.
[B] Bile salts in it help in emulsification of fats.
[C] Bile also activates lipases
[D] Bile contain digestive enzyme

Question No:12

Intestinal juice or succus entericus is formed by the secretion of

[A] goblet cells
[B] brush border cells lining mucosa
[C] both
[D] none

Question No:13

Enzymes like dipeptidases, lipases, nucleosidases, nucleotidases, maltase and sucrase are present in

[A] bile juice
[B] gastric juice
[C] pancreatic juice
[D] succus entericus

Question No:14

Brunner’s gland

[A] is situated in mucosal layer
[B] is present in sub-mucosal layer
[C] secretes HCI
[D] helps in activation of gastric enzyme

Question No:15

Select the incorrect statement from the following:

[A] Succus entericus act on end products produced by pancreatic enzyme
[B] Final steps of digestion occur far away from the mucosal epithelial cells of the intestine
[C] The breakdown of bio macromolecule generally occurs in the duodenum region of small intestine
[D] Simple substance forms after digestion is absorbed mainly by jejunum and ileum.