Multiple Choice Questions

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Select the correct match of the digested products in humans given in column I with their absorption site and mechanism in column II.

  • Column I Column II
    Glycine and glucose Small intestine and active absorption
  • Fructose and Na+ Small intestine passive absorption
  • Glycerol and fatty acids Duodenum and move as chilomicrons
  • Cholesterol and maltose Large intestine and active absorption


A.

Column I Column II
Glycine and glucose Small intestine and active absorption

Amino acids monosaccharides like glucose, electrolytes like Na are absorbed into the blood by active transport. Fructose and some amino acids are absorbed with the help of the carrier ions like Na by facilitated transport. Fatty acid and glycerol cannot be absorbed into the blood. They are first incorporated into small droplets called micelles, which move into the intestinal mucosa.


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Cholecystokinin stimulates the secretion of

  • bile

  • gastric juice

  • pancreatic juice

  • succus entericus


The usual cause (s) of peptic ulceration is/are

  • lower rate of secretion of gastric juice

  • higher rate of secretion of gastric and duodenal juices

  • improper neutralisation of gastric juice by duodenal juices

  • imbalance between the rate of secretion of gastric juice and the degree of protection offered by gastro-duodenal mucosa


Brunner's gland is present in

  • duodenum

  • jejunum

  • ileum

  • rectum


Meissner's corpuscles occur in

  • brain

  • nerve cells

  • skin

  • tongue


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Which of the following organs does not produce any digestive enzymes?

  • Salivary gland

  • Pancreas

  • Liver

  • Stomach


Intrinsic factor produced by the oxyntic cells of human gut wall is essential for

  • converting the inactive pepsinogen to its active form pepsin

  • maintaining an extremely acid environment in the stomach

  • protecting the stomach wall and glands from autolysis (self-digestion)

  • absorption of vitamin B12 from the dietary supply


The serous membrane which covers the lungs is called

  • pericardium

  • peritoneum

  • perichondrium

  • pleura


Ptyalin is inactivated by a component of gastric juice known as

  • pepsin

  • mucus

  • renin

  • HCl


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Match the following column I with column II

Column I Column II
A. Vitamin- B1 1. Accumulation of fat
B. Gastric juice 2. Loss of fat
C. Starvation 3. Pepsin
D. Obesity 4. Beri- beri

  • A- 3; B- 4; C- 2; D- 1

  • A- 3; B- 4; C- 1; D- 2

  • A- 4; B- 3; C- 1; D- 2

  • A- 4; B- 2; C- 1; D- 3


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