Free Digestion And Absorption (Daily Quiz: 5) NEET Biology Questions & Answers with Detailed Explanation & Full Review

Free Digestion And Absorption (Daily Quiz: 5) Time:

Question-1

Which of the following carries glucose from digestive tract to liver?

(a)

(b)

(c)

(d)

Explanation:

Answer: (a)

A system of veins leading from the digestive tract to capillaries in the liver of a vertebrate is known as hepatic portal system. Thus, absorbed products of digestion (except fat) go straight to the liver and not to the heart. Pulmonary vein conveys oxygenated blood from the lungs to the left atrium of the heart. Hepatic artery supply blood to the liver.


Question-2

Epithelial cells of the intestine involved in food absorption have on their surface

(a)

(b)

(c)

(d)

Explanation:

Answer: (b)

Microvilli are countless minute, closely - set projections from the free surface of the mucosal cells of the intestine. There may be about 500 microvilli on each cell. These are meant to increase the absorptive surface area of the intestine. Pinocytic vesicles are involved in intake of extracellular fluid. Phagocytic vesicles are involved in engulfing of large solid particles. Zymogen granules contain proteolytic enzymes in an inactive form.


Question-3

Trypsinogen is activated by

(a)

(b)

(c)

(d)


Question-4

The abnormal frequent bowel movement and increased liquidity of faecal discharge is known as

(a)

(b)

(c)

(d)


Question-5

Which of the following is characteristic of the large intestine?

(a)

(b)

(c)

(d)

Explanation:

Answer: (a)

The large intestine is the site of water and ion absorption. The large population of bacteria in the large intestine contributes vitamins that are useful to the host.


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