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Digestion and Absorption · Question 15

NEET 2017MCQMedium📈 Topic in 25% papers+4−1
1

Which cells of 'Crypts of Lieberkuhn' secrete antibacterial lysozyme?

  1. Paneth cells
  2. Zymogen cells
  3. Kupffer cells
  4. Argentaffin cells

Answer

(1) Paneth cells

Solution

The crypts of Lieberkuhn are the intestinal glands present between the bases of the villi.

Paneth cells, present at the base of these crypts, secrete the antibacterial enzyme lysozyme.

Zymogen (chief) cells are found in the gastric glands and secrete pepsinogen; Kupffer cells are phagocytic cells of the liver; argentaffin cells secrete hormone-like substances (e.g. serotonin).

Answer: (1)

Out of syllabusNEET 2017

Keep practising — Digestion and Absorption

2

Which of the following options best represents the enzyme composition of pancreatic juice?

  1. Amylase, Pepsin, Trypsinogen, Maltase
  2. Peptidase, Amylase, Pepsin, Rennin
  3. Lipase, Amylase, Trypsinogen, Procarboxypeptidase
  4. Amylase, Peptidase, Trypsinogen, Rennin
Out of syllabusNEET 2017
3

A baby boy aged two years is admitted to play school and passes through a dental check-up. The dentist observed that the boy had twenty teeth. Which teeth were absent?

  1. Canines
  2. Pre-molars
  3. Molars
  4. Incisors
Out of syllabusNEET 2017
4

Which of the following guards the opening of hepatopancreatic duct into the duodenum?

  1. Pyloric sphincter
  2. Sphincter of Oddi
  3. Semilunar valve
  4. Ileocaecal valve
Out of syllabusNEET 2016 (Phase 1)
5

In the stomach, gastric acid is secreted by the

  1. peptic cells
  2. acidic cells
  3. gastrin secreting cells
  4. parietal cells.
Out of syllabusNEET 2016 (Phase 1)
6

The enzyme that is not present in succus entericus is

  1. nucleosidase
  2. lipase
  3. maltase
  4. nuclease.
Out of syllabusAIPMT 2015
7

The primary dentition in human differs from permanent dentition in not having one of the following type of teeth.

  1. Molars
  2. Incisors
  3. Canines
  4. Premolars
Out of syllabusAIPMT 2015
8

Gastric juice of infants contains

  1. pepsinogen, lipase, rennin
  2. amylase, rennin, pepsinogen
  3. maltase, pepsinogen, rennin
  4. nuclease, pepsinogen
Out of syllabusAIPMT 2015 (Cancelled)
9

Which of the following statements is not correct?

  1. Oxyntic cells are present in the mucosa of stomach and secrete HCl.
  2. Acini are present in the pancreas and secrete carboxypeptidase.
  3. Brunner's glands are present in the submucosa of stomach and secrete pepsinogen.
  4. Goblet cells are present in the mucosa of intestine and secrete mucus.
Out of syllabusAIPMT 2015 (Cancelled)
10

The initial step in the digestion of milk in humans is carried out by

  1. lipase
  2. trypsin
  3. rennin
  4. pepsin.
Out of syllabusAIPMT 2014
11

Fructose is absorbed into the blood through mucosa cells of intestine by the process called

  1. active transport
  2. facilitated transport
  3. simple diffusion
  4. co-transport mechanism.
Out of syllabusAIPMT 2014

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