Free Digestion And Absorption (Weekly Quiz: 1) NEET Biology Questions & Answers with Detailed Explanation & Full Review

Question-1

Which enzyme activates other enzymes in pancreatic juice?

(a) Chymotrypsin

(b) Enterokinase

(c) Trypsin

(d) Lipase

Question-2

Assertion:
In human teeth is the codont type.
Reason:
Tooth in human embedded in a socket of jaw bone.

(a) If both the assertion and reason are true but the reason is not a correct explanation of the assertion.

(b) If both the assertion and the reason are true and the reason is a correct explanation of the assertion.

(c) If the assertion is true but the reason is false.

(d) If both the assertion and reason are false.

Question-3

What will happen if the secretion of parietal cells of gastric glands is blocked with an inhibitor?

(a) In the absence of HC1 secretion, inactive pepsinogen is not converted into the active enzyme pepsin

(b) Gastric juice will be deficient in pepsinogen

(c) Gastric juice will be deficient in chymosin

(d) Enterokinase will not be released from the duodenal mucosa and so trypsinogen is not converted to trypsin

Question-4

Which of the following gastric cells indirectly help in erythropoiesis?

(a) Goblet cells

(b) Mucous cells

(c) Chief cells

(d) Parietal cells

Question-5

Goblet cells are an example of

(a) Unicellular gland

(b) Multicellular gland

(c) Alveolar gland

(d) Tubular gland

Question-6

Mark the incorrect statement in the following

(a) Irregular folds of gastric mucosa are rugae

(b) Brunner’s glands are submucosal

(c) Glisson’s capsule is the connective tissue sheath of hepatic lobule

(d) Mesothelium or serosa lies in close proximity of the circular layer of tunica muscularis

Question-7

Which of the following dietary deficiencies will affect the functioning of enzymes in the human body most quickly?

(a) Shortage of water-soluble vitamins

(b) Shortage of fat-soluble vitamins

(c) Too few carbohydrates

(d) Insufficient variety of fats

Question-8

Which of the following is correct pairing of site of action and substrate of rennin?

(a) Stomach - Casein

(b) Small intestine - Protein

(c) Mouth - Starch

(d) Stomach - Fat

Question-9

Semi - digested food in intestine is called

(a) chyme

(b) chyle

(c) bolus

(d) none of these

Question-10

What is common among amylase, renin and trypsin?

(a) All are proteolytic enzymes.

(b) All are proteins.

(c) Produced in stomach.

(d) Act at pH lower than 7.