NEET-UG SERIES

Biology

Digestion And Absorption

65 previous year questions.

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Chapter Questions
65 MCQs

01

PYQ 1988

medium

biology ID: neet-ug-

Wharton's duct is associated with

1

sublingual salivary gland

2

parotid salivary gland ,

3

submaxillary salivary gland

4

Brunner's glands.

02

PYQ 1988

medium

biology ID: neet-ug-

Duct leading from parotid gland and opening into vestibule is

1

Haversian duct

2

Stenson's duct

3

Wolffian duct

4

infra-orbital duct.

03

PYQ 1989

medium

biology ID: neet-ug-

Release of pancreatic juice is stimulated by

1

enterokinase

2

cholecystokinin

3

trypsinogen

4

secretin.

04

PYQ 1990

medium

biology ID: neet-ug-

In man the zymogen or chief cells are mainly found in

1

cardiac part of stomach

2

pyloric part of stomach

3

duodenum

4

fundic part of stomach.

05

PYQ 1990

medium

biology ID: neet-ug-

Emulsification of fat is carried out by

1

bile pigments

2

bile salts

3

HCl

4

pancreatic juice.

06

PYQ 1991

medium

biology ID: neet-ug-

Where is protein digestion accomplished?

1

stomach

2

ileum

3

rectum

4

duodenum.

07

PYQ 1993

medium

biology ID: neet-ug-

Kupffer's cells occur in

1

spleen

2

kidney

3

brain

4

liver.

08

PYQ 1993

medium

biology ID: neet-ug-

Vitamin K is required for

1

change of prothrombin into thrombin

2

synthesis of prothrombin

3

change of fibrinogen to fibrin

4

formation of thromboplastin.

09

PYQ 1993

medium

biology ID: neet-ug-

Most of the fat digestion occurs in

1

rectum

2

stomach

3

duodenum

4

small intestine.

10

PYQ 1994

medium

biology ID: neet-ug-

Calcium deficiency in the body occurs in the absence of

1

vitamin C

2

vitamin D

3

vitamin B

4

vitamin E.

11

PYQ 1994

medium

biology ID: neet-ug-

The site of action and substrate of rennin are respectively

1

mouth and starch

2

small intestine and protein

3

stomach and casein

4

stomach and fat

12

PYQ 1994

medium

biology ID: neet-ug-

Which of the following is the function of enterogastrone?

1

it inhibits the secretion of gastric juice

2

it stimulates the secretion of digestive juices in the stomach

3

it stimulates the flow of pancreatic juice

4

it regulates the flow of bile.

13

PYQ 1995

medium

biology ID: neet-ug-

The vitamin C or ascorbic acid prevents

1

scurvy

2

antibody synthesis

3

rickets

4

pellagra.

14

PYQ 1996

medium

biology ID: neet-ug-

Choose the correct enzyme - substrate pair.

1

carbohydrate - lipase

2

maltase - lactose

3

rennin - caesin

4

protein - amylase.

15

PYQ 1997

medium

biology ID: neet-ug-

Which one of the following vitamins can be synthesized by bacteria inside the gut?

1

D

2

K

3

B,

4

C.

16

PYQ 1997

medium

biology ID: neet-ug-

If pancreas is removed, the compound which remain undigested is

1

proteins

2

carbohydrates

3

fats

4

all of these.

17

PYQ 1997

medium

biology ID: neet-ug-

What is common among amylase, rennin and trypsin?

1

these are produced in stomach

2

these act at a pH lower than 7

3

these all are proteins

4

these all are proteolytic enzymes.

18

PYQ 1998

medium

biology ID: neet-ug-

Which one of the following is a protein deficiency disease?

1

kwashiorkar

2

night blindness

3

eczema

4

cirrhosis.

19

PYQ 1999

medium

biology ID: neet-ug-

Which of the following is mismatched?

1

vitamin A - xerophthalmia

2

vitamin D - rickets

3

vitamin K - beri-beri

4

vitamin C - scurvy.

20

PYQ 1999

medium

biology ID: neet-ug-

Which part of our body secretes the hormone secretin ?

1

Ileum

2

Duodenum

3

Oesophagus

4

Stomach

21

PYQ 1999

medium

biology ID: neet-ug-

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

1

pulmonary vein

2

hepatic artery

3

hepatic portal vein

4

none of these.

22

PYQ 2000

medium

biology ID: neet-ug-

In mammals milk is digested by action of:

1

Rennin

2

Amylase

3

Intestinal bacteria

4

Invertase

23

PYQ 2000

medium

biology ID: neet-ug-

Which food should be eaten during deficiency of rhodopsin in eyes?

1

carrot and ripe papayas

2

guava, banana

3

mango and potato

4

none of the above

24

PYQ 2000

medium

biology ID: neet-ug-

A person who is eating boiled potato, his food contains the component

1

cellulose which is digested by cellulase

2

starch which is not digested

3

lactose which is not digested

4

DNA which can be digested by pancreatic DNAase.

25

PYQ 2001

medium

biology ID: neet-ug-

Which one of the following is correctly matched?

1

vitamin E - tocopherol

2

vitamin D - riboflavin

3

vitamic B - calciferol

4

vitamin A - thiamine.

26

PYQ 2002

medium

biology ID: neet-ug-

Continuous bleeding from an injured part of body is due to deficiency of ;-

1

Vitamin -A

2

Vitamin - B

3

Vitamin - K

4

Vitamin - E

27

PYQ 2002

medium

biology ID: neet-ug-

Hydrolytic enzymes which act on low pH are called as

1

Protease

2

α-Amylase

3

Hydrolases

4

Peroxidase

28

PYQ 2003

medium

biology ID: neet-ug-

During prolonged fastings, in what sequence are the following organic compounds used up by the body ?

1

First carbohydrates, next fats and lastly proteins

2

First fats, next carbohydrates and lastly proteins

3

First carbohydrates, next proteins and lastly lipids

4

First proteins, next lipids and lastly carbohydrates

29

PYQ 2004

medium

biology ID: neet-ug-

The richest sources of vitamin B are

1

goat's liver and Spirulina

2

chocolate and green gram

3

rice and hen's egg

4

carrot and chicken's breast.

30

PYQ 2004

medium

biology ID: neet-ug-

Duodenum has characteristic Brunner's gland which secrete two hormones called

1

kinase, estrogen

2

secretin, cholecystokinin

3

prolactin, parathormone

4

estradiol, progesterone.

31

PYQ 2005

easy

biology ID: neet-ug-

Secretin and cholecystokinin are digestive hormones. They are secreted in

1

Pyloric stomach

2

Duodenum

3

Ileum

4

Oesophagus

32

PYQ 2005

medium

biology ID: neet-ug-

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

1

Pinocytic vesicles

2

Phagocytic vesicles

3

Zymogen granules

4

Micro-villi

33

PYQ 2005

medium

biology ID: neet-ug-

A patient is generally advised to specially, consume more meat, lentils, milk and eggs in diet only when he suffers from:

1

Kwashiorkor

2

Rickets

3

Anaemia

4

Scurvy

34

PYQ 2005

medium

biology ID: neet-ug-

Which group of three of the following five statements (1-5) contain is all three correct statements regarding beri-beri? A. A crippling disease prevalent among the native population of sub-Sahara Africa. B. A deficiency disease caused by lack of thiamine (vitamin B1). C. A nutritional disorder in infants and young children when the diet is persistently deficient in essential protein. D. Occurs in those countries where the staple diet is polished rice. E. The symptoms are pain from neuritis, paralysis, muscle wasting, progressive oedema, mental deterioration and finally heart failure.

1

A, B and D

2

B, C and E

3

A, C and E

4

B, D and E

35

PYQ 2005

medium

biology ID: neet-ug-

Which group of three of the following five statements (1 -5) contain all three correct statements regarding beri-beri? A. A crippling disease prevalent among the native population of sub-Sahara Africa. B. A deficiency disease caused by lack of thiamine (vitamin B1). C. A nutritional disorder in infants and young children when the diet is persistently deficient in essential protein. D. Occurs in those countries where the staple diet is polished rice. E. The symptoms are pain from neuritis, paralysis, muscle wasting, progressive oedema, mental deterioration and finally heart failure.

1

B,D and E

2

A, B and D

3

B,C and E

4

A, C and E

36

PYQ 2007

medium

biology ID: neet-ug-

Which one of the following is a fat-soluble vitamin and its related deficiency disease?

1

Retinol - Xerophthalmia

2

Cobalamine - Beri-beri

3

Calciferol - Pellagra

4

Ascorbic acid - Scurvy.

37

PYQ 2009

easy

biology ID: neet-ug-

When breast feeding is replaced by less nutritive food low in proteins and calories; the infants below the age of one year are likely to suffer from

1

Rickets

2

Kwashiorkor

3

Marasmus

4

Pellagra

38

PYQ 2010

medium

biology ID: neet-ug-

If for some reason the parietal cells of the gut epithelium become partially non-functional, what is likely to happen?

1

The pancreatic enzymes and specially trypsin and lipase will not work efficiently

2

Proteins will not be adequately hydrolysed by pepsin into proteoses and peptones

3

The pH of stomach will fall abruptly

4

Steapsin will be more effective

39

PYQ 2010

medium

biology ID: neet-ug-

If for some reason our goblet cells are non- functional, this will adversely affect

1

production of somatostatin

2

secretion of sebum from the sebaceous glands

3

maturation of sperms

4

smooth movement of food down the intestine.

40

PYQ 2010

medium

biology ID: neet-ug-

Jaundice is a disorder of

1

Skin and eyes

2

Excretory system

3

Digestive system

4

Circulatory system

41

PYQ 2011

medium

biology ID: neet-ug-

Which one of the following correctly represents the normal adult human dental formula?

1

3/3, 1/1, 3/2, 1/1

2

2/2,1/1,3/2,3/3

3

2/2, 1/1,2/2,3/3

4

3/3,1/1,3/3,3/3

42

PYQ 2012

medium

biology ID: neet-ug-

Anxiety and eating spicy food together in an otherwise normal human, may lead to

1

Indigestion

2

Jaundice

3

Diarrhoea

4

Vomiting

43

PYQ 2013

medium

biology ID: neet-ug-

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

1

126

2

164

3

112

4

144

44

PYQ 2014

medium

biology ID: neet-ug-

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

1

Trypsin

2

Rennin

3

Pepsin

4

Lipase

45

PYQ 2014

medium

biology ID: neet-ug-

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

1

Facilitated transport

2

Simple diffusion

3

Co-transport mechanism

4

Active transport

46

PYQ 2015

medium

biology ID: neet-ug-

Gastric juice of infants contains

1

pepsinogen, lipase, rennin

2

amylase, rennin, pepsinogen

3

maltase, pepsinogen, rennin

4

nuclease, pepsinogen, lipase

47

PYQ 2015

medium

biology ID: neet-ug-

Which of the following statements is not correct?

1

Oxyntic cells are present in the mucosa of stomach and secrete HC1.

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.

48

PYQ 2015

medium

biology ID: neet-ug-

The enzyme that is not present in succus entericus is

1

nucleosidase

2

lipase

3

maltase

4

nuclease.

49

PYQ 2016

medium

biology ID: neet-ug-

In the stomach, gastric acid is secreted by the :

1

Parietal cells

2

Peptic cells

3

Acidic cells

4

Gastrin secreting cells

50

PYQ 2017

medium

biology ID: neet-ug-

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

1

Paneth cells

2

Zymogen cells

3

Kupffer cells

4

Argentaffin cells

51

PYQ 2017

easy

biology ID: neet-ug-

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

52

PYQ 2017

medium

biology ID: neet-ug-

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

53

PYQ 2017

medium

biology ID: neet-ug-

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

Incisors

2

Canines

3

Pre-molars

4

Molars

54

PYQ 2017

medium

biology ID: neet-ug-

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

1

Argentaffin cells

2

Paneth cells

3

Zymogen cells

4

Kupffer cells

55

PYQ 2018

medium

biology ID: neet-ug-

Which of the following gastric cells indirectly help in erythropoiesis ?

1

Parietal cells

2

Chief cells

3

Goblet cells

4

Mucous cells

56

PYQ 2018

medium

biology ID: neet-ug-

Which of the following terms describe human dentition ?

1

Pleurodont, Diphyodont, Heterodont

2

Thecodont, Diphyodont, Homodont

3

Pleurodont, Monophyodont, Homodont

4

Thecodont, Diphyodont, Heterodont

57

PYQ 2019

medium

biology ID: neet-ug-

Kwashiorkor disease is due to :-

1

Simultaneous deficiency of proteins and fats

2

Simultaneous deficiency of proteins and calories

3

Deficiency of carbohydrates

4

Protein deficiency not accompained by calorie deficiency

58

PYQ 2020

medium

biology ID: neet-ug-

The proteolytic enzyme rennin is found in :

1

Intestinal juice

2

Bile juice

3

Gastric juice

4

Pancreatic juice

59

PYQ 2021

medium

biology ID: neet-ug-

Succus entericus is referred to as

1

Chyme

2

Pancreatic juice

3

Intestinal juice

4

Gastric juice

60

PYQ 2021

medium

biology ID: neet-ug-

Sphincter of odd is present at

1

Junction of jejunum and duodenum

2

Ileo-caecal junction

3

Junction of hepato-pancreatic duct and duodenum

4

Gastro-oesophageal junction

61

PYQ 2022

easy

biology ID: neet-ug-

Which of the following functions is not performed by secretions from salivary glands?

1

Control bacterial population in mouth

2

Digestion of complex carbohydrates

3

Lubrication of oral cavity

4

Digestion of disaccharides

62

PYQ 2022

easy

biology ID: neet-ug-

Given below are two statements: Statement I: Fatty acids and glycerols cannot be absorbed into blood. Statement II: Specialized lymphatic capillaries called lacteals carry chylomicrons into lymphatic vessels and ultimately into the blood. In the light of the above statements, choose the most appropriate answer from the options given below:

1

Both statement I and Statement II are correct

2

Both statement I and Statement II are incorrect

3

Statement I is correct but statement II is incorrect

4

Statement I is incorrect but statement II is correct

63

PYQ 2023

easy

biology ID: neet-ug-

Once the undigested and unabsorbed substances enter the caecum, their backflow is prevented by

1

Ileo-caecal valve

2

Gastro-oesophageal sphincter

3

Pyloric sphincter

4

Sphincter of Oddi

64

PYQ 2023

easy

biology ID: neet-ug-

Match List I with List II List I (Cells) List II (Secretion) A Peptic cells I Mucus B Goblet cells II Bile juice C Oxyntic cells III Proenzyme pepsinogen D Hepatic cells IV HCl and intrinsic factor for absorption of vitamin B12 Choose the correct answer from the options given below:

1

A-II, B-I, C-III, D-IV

2

A-III, B-I, C-IV, D-II

3

A-II, B-IV, C-I, D-III

4

A-IV, B-III, C-II, D-I

65

PYQ 2024

easy

biology ID: neet-ug-

Match List I with List II List I List II A Lipase I Peptide bond B Nuclease II Ester bond C Protease III Glycosidic bond D Amylase IV Phosphodiester bond Choose the correct answer from the options given below:

1

A-IV, B-II, C-III, D-I

2

A-III, B-II, C-I, D-IV

3

A-II, B-IV, C-I, D-III

4

A-IV, B-I, C-III, D-II

About Digestion And Absorption - NEET-UG

Digestion And Absorption is a vital chapter for NEET-UG aspirants. Mastering the concepts covered in this chapter is essential for securing a top rank.

By rigorously practicing the previous year questions associated with this chapter, you can identify high-yield topics, understand the examiner's perspective, and boost your confidence during the actual exam.

Frequently Asked Questions

Why focus on Digestion And Absorption PYQs?

Analyzing PYQs for this specific chapter reveals the most frequently tested concepts and the typical complexity of questions, allowing you to tailor your study plan efficiently.

How to best use this analysis?

Review the topic breakdown to see which sub-topics within Digestion And Absorption carry the most weight. Then, tackle the questions iteratively to solidify your understanding.