Free Digestion And Absorption (Daily Quiz: 8) NEET Biology Questions & Answers with Detailed Explanation & Full Review

Question-1

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

(a) Gastric juice will be deficient in pepsinogen.

(b) Gastric juice will be deficient in chymosin.

(c) In the absence of HCI secretion, inactive pepsinogen is not converted into the active pepsin enzyme.

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

Question-2

Which of the following statements is incorrect?

(a) Reflex of vomiting is controlled by medulla.

(b) Faecal accumulation in the rectum initiates a neural reflex causing an urge for its removal.

(c) Irregular bowel movements cause constipation.

(d) In diarrhea the absorption of food is increased.

Question-3

The centre of hunger or centre which regulates the amount of food we eat or out appetite is located in –

(a) Hypothalamus

(b) Cerebrum

(c) Medulla

(d) Alimentary canal

Question-4

In the stomach, gastric acid is secreted by the

(a) parietal cells

(b) gastrin secreting cells

(c) peptic cells

(d) acidic cells

Question-5

Assertion:
Pharynx serves as common passage for air and food.
Reason:
Trachea and oesophagus open into pharynx.

(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.