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Digestion and Absorption · Question 17

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

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

Answer

(2) Pre-molars

Solution

A two-year-old child has only milk (deciduous) teeth.

Dental formula of milk teeth (I C PM M) = 21022102

Number of teeth = 2 (2 + 1 + 0 + 2) 2 = 20

Adult dental formula (as per NCERT) = 21232123, i.e. 32 teeth.

Premolars (and the third molars) are absent in the milk dentition.

Answer: (2)

Out of syllabusNEET 2017

Keep practising — Digestion and Absorption

2

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)
3

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)
4

The enzyme that is not present in succus entericus is

  1. nucleosidase
  2. lipase
  3. maltase
  4. nuclease.
Out of syllabusAIPMT 2015
5

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
6

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)
7

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)
8

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
9

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
10

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

  1. array|l|l| Column I & Column II \ Glycerol, fatty acids & Duodenum, move as chylomicrons \ array
  2. array|l|l| Column I & Column II \ Cholesterol, maltose & Large intestine, active absorption \ array
  3. array|l|l| Column I & Column II \ Glycine, glucose & Small intestine, active absorption \ array
  4. array|l|l| Column I & Column II \ Fructose, Na+ & Small intestine, passive absorption \ array
Out of syllabusNEET 2013
11

A healthy person eats the following diet – 5 g raw sugar, 4 g albumin, 10 g pure buffalo ghee adulterated with 2 g vegetable ghee (hydrogenated vegetable oil) and 5 g lignin. How many calories he is likely to get?

  1. 126
  2. 164
  3. 112
  4. 144
Out of syllabusNEET 2013 (Karnataka)

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