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Digestion and Absorption

73 Questions
All Exams NEET AIIMS
2023 NEET MCQ
NEET 2023 Manipur

Diacetyl morphine is also called as :

A.
Amphetamine
B.
Barbiturate
C.
Crack
D.
Smack
2023 NEET MCQ
NEET 2023 Manipur

Select the correct sequential steps regarding absorption of fatty acids and glycerol, in intestine.

(A) Micelles are reformed into small protein coated fat globules called chylomicrons.

(B) Micelles move into intestinal mucosa.

(C) Fatty acids and glycerol are incorporated into small droplets called micelles.

(D) Lacteals release the absorbed substances into blood stream.

(E) Chylomicrons are transported into lacteals.

Choose the correct answer from the options given below :

A.
(A), (E), (B), (D), (C)
B.
(D), (E), (B), (C), (A)
C.
(C), (B), (A), (E), (D)
D.
(B), (C), (E), (A), (D)
2023 NEET MCQ
NEET 2023

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 B$_{12}$

Choose the correct answer from the options given below:

A.
A-II, B-I, C-III, D-IV
B.
A-III, B-I, C-IV, D-II
C.
A-II, B-IV, C-I, D-III
D.
A-IV, B-III, C-II, D-I
2023 NEET MCQ
NEET 2023

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

A.
Ileo-caecal valve
B.
Gastro-oesophageal sphincter
C.
Pyloric sphincter
D.
Sphincter of Oddi
2023 NEET MCQ
NEET 2023

Match List I with List II.

List I List II
(A) CCK (I) Kidney
(B) GIP (II) Heart
(C) ANF (III) Gastric gland
(D) ADH (IV) Pancreas

Choose the correct answer from the options given below :

A.
A-III, B-II, C-IV, D-I
B.
A-II, B-IV, C-I, D-III
C.
A-IV, B-II, C-III, D-I
D.
A-IV, B-III, C-II, D-I
2022 NEET MCQ
NEET 2022 Phase 2

Role of enamel is to

A.
Give basic shape to the teeth
B.
Connect crown of tooth with its root
C.
Masticate the food
D.
Form bolus
2022 NEET MCQ
NEET 2022 Phase 1

Given below are two statements:

Statement I : Fatty acids and glycerols cannot be absorbed into the 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:

A.
Both Statement I and Statement II are correct
B.
Both Statement I and Statement II are incorrect
C.
Statement I is correct but Statement II is incorrect
D.
Statement I is incorrect but Statement II is correct
2022 NEET MCQ
NEET 2022 Phase 1

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

A.
Control bacterial population in mouth
B.
Digestion of complex carbohydrates
C.
Lubrication of oral cavity
D.
Digestion of disaccharides
2022 NEET MCQ
NEET 2022 Phase 1

Which of the following is present between the adjacent bones of the vertebral column?

A.
Intercalated discs
B.
Cartilage
C.
Areolar tissue
D.
Smooth muscle
2021 NEET MCQ
NEET 2021
Succus entericus is referred to as :
A.
Chyme
B.
Pancreatic juice
C.
Intestinal juice
D.
Gastric juice
2021 NEET MCQ
NEET 2021
Sphincter of oddi is present at :
A.
Junction of jejunum and duodenum
B.
Ileo-caecal junction
C.
Junction of hepato-pancreatic duct and duodenum
D.
Gastro-oesophageal junction
2020 NEET MCQ
NEET 2020 Phase 1
Identify the correct statement with reference to human digestive system.
A.
Ileum opens into small intestine
B.
Vermiform appendix arises from duodenum
C.
Serosa is the innermost layer of the alimentary canal
D.
Ileum is a highly coiled part
2020 NEET MCQ
NEET 2020 Phase 1
The enzyme enterokinase helps in conversion of
A.
pepsinogen into pepsin
B.
protein into polypeptides
C.
trypsinogen into trypsin
D.
caseinogen into casein
2020 NEET MCQ
NEET 2020 Phase 1
Goblet cells of alimentary canal are modified from
A.
Columnar epithelial cells
B.
Compound epithelial cells
C.
Squamous epithelial cells
D.
Chondrocytes
2019 NEET MCQ
NEET 2019
It takes very long time for pineapple plants to produce flowers. Which combination of hormones can be applied to artificially induce flowering in pineapple plants throughout the year to increase yield?
A.
Gibberellin and Abscicic acid
B.
Cytokinin and Abscisic acid
C.
Auxin and Ethylene
D.
Gibberellin and Cytokinin
2019 NEET MCQ
NEET 2019
Identify the cells whose secretion protects the lining of gastro-intestinal tract from various enzymes.
A.
Oxyntic Cells
B.
Duodenal Cells
C.
Chief Cells
D.
Goblet Cells
2019 NEET MCQ
NEET 2019
Match the following structures with their respective location in organs :

(a) Crypts of Lieberkuhn (i) Pancreas
(b) Glisson’s capsule (ii) Duodenum
(c) Islets of Langerhans (iii) Small intestine
(d) Brunner’s Glands (iv) Liver

Select the correct option
A.
(a) (b) (c) (d)
(iii) (iv) (i) (ii)
B.
(a) (b) (c) (d)
(iii) (ii) (i) (iv)
C.
(a) (b) (c) (d)
(iii) (i) (ii) (iv)
D.
(a) (b) (c) (d)
(ii) (iv) (i) (iii)
2018 NEET MCQ
NEET 2018
Which of the following terms describe human dentition?
A.
Pleurodont, Monophyodont, Homodont
B.
Thecodont, Diphyodont, Homodont
C.
Pleurodont, Diphyodont, Heterodont
D.
Thecodont, Diphyodont, Heterodont
2018 NEET MCQ
NEET 2018
Which of the following gastric cells indirectly help in erythropoiesis?
A.
Mucous cells
B.
Parietal cells
C.
Chief cells
D.
Goblet cells
2017 NEET MCQ
NEET 2017
Which of the following options best represents the enzyme composition of pancreatic juice?
A.
Amylase, Pepsin, Trypsinogen, Maltase
B.
Peptidase, Amylase, Pepsin, Rennin
C.
Lipase, Amylase, Trypsinogen, Procarbo-xypeptidase
D.
Amylase, Peptidase, Trypsinogen, Rennin
2017 NEET MCQ
NEET 2017
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?
A.
Canines
B.
Pre-molars
C.
Molars
D.
Incisors
2017 NEET MCQ
NEET 2017
Which cells of 'Crypts of Lieberkuhn' secrete antibacterial lysozyme?
A.
Paneth cells
B.
Zymogen cells
C.
Kupffer cells
D.
Argentaffin cells
2016 NEET MCQ
NEET 2016 Phase 2
Which hormones do stimulate the production of pancreatic juice and bicarbonate?
A.
Angiotensin and epinephrine
B.
Gastrin and insulin
C.
Cholecystokinin and secretin
D.
Insulin and glucagon
2016 NEET MCQ
NEET 2016 Phase 1
In the stomach, gastric acid is secreted by the
A.
peptic cells
B.
acidic cells
C.
gastrin secreting cells
D.
parietal cells.
2016 NEET MCQ
NEET 2016 Phase 1
Which of the following guards the opening of hepatopanjcreatic duct into the duodenum?
A.
Pyloric sphincter
B.
Sphincter of Oddi
C.
Semilunar valve
D.
Ileocaecal valve
2015 NEET MCQ
AIPMT 2015
The primary dentition in human differs from permanent dentition in not having one of the following type of teeth.
A.
Molars
B.
Incisors
C.
Canines
D.
Premolars
2015 NEET MCQ
AIPMT 2015
The enzyme that is not present in succus entericus is
A.
nucleosidase
B.
lipase
C.
maltase
D.
nuclease.
2015 NEET MCQ
AIPMT 2015 Cancelled Paper
Gastric juice of infants contains
A.
pepsinogen, lipase, rennin
B.
amylase, remain, pepsinogen
C.
maltase, pepsinogen, rennin
D.
nuclease, pepsinogen
2015 NEET MCQ
AIPMT 2015 Cancelled Paper
Which of the following statements is not correct?
A.
Oxyntic cells are present in the mucosa of stomach and secrete HCl.
B.
Acini are present in the pancreas and secrete carboxypeptidase.
C.
Brunner's glands are present in the submucosa of stomach and secrete pepsinogen.
D.
Goblet cells are present in the mucosa of intestine and secrete mucus.
2014 NEET MCQ
AIPMT 2014
Fructose is absorbed into the blood through mucosa cells of intesine by the process called
A.
active transport
B.
facilitated transport
C.
simple diffusion
D.
co-transport mechanism.
2014 NEET MCQ
AIPMT 2014
The initial step in the digestion of milk in humans is carried out by
A.
lipase
B.
trypsin
C.
rennin
D.
pepsin.
2013 NEET MCQ
NEET 2013 (Karnataka)
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?
A.
126
B.
164
C.
112
D.
144
2013 NEET MCQ
NEET 2013 (Karnataka)
Which enzymes are likely to act on the backed potatoes eaten by a man, starting from the mouth and as it moves down the alimentary canal?
A.
Pancreatic amylase $ \to $ Salivary amylase $ \to $ Lipases
B.
Disaccharidase like maltase $ \to $ Lipases $ \to $ Nucleases
C.
Salivary amylase $ \to $ Pancreatic amylase $ \to $ Disaccharidases
D.
Salivary maltase $ \to $ Carboxy peptidase $ \to $ Trypsinogen
2013 NEET MCQ
NEET 2013
Select the correct match of the digested products in humans given in column ${\rm I}$ with their absorption site and mechanism in column ${\rm I}$${\rm I}$.
A.
Column ${\rm I}$ Column ${\rm I}$${\rm I}$
Glycerol, fatty acids Duodenum, move as
chylomicrons
B.
Column ${\rm I}$ Column ${\rm I}$${\rm I}$
Cholesterol, maltose Large intestine, active
absorption
C.
Column ${\rm I}$ Column ${\rm I}$${\rm I}$
Glycine, glucose Small intestine, active
absorption
D.
Column ${\rm I}$ Column ${\rm I}$${\rm I}$
Fructose, Na+ Small intestine, passive
absorption
2012 NEET MCQ
AIPMT 2012 Mains
Where do certain symbiotic microorganisms normally occur in human body?
A.
Caecum
B.
Oral lining and tongue surface
C.
Vermiform appendix and rectum
D.
Duodenum
2012 NEET MCQ
AIPMT 2012 Mains
For its activity, carboxypeptidase requires
A.
Zinc
B.
iron
C.
niacin
D.
copper.
2012 NEET MCQ
AIPMT 2012 Prelims
Anxiety and eating spicy food together in an otherwise normal human, may lead to
A.
indigestion
B.
jaundicce
C.
diarrhoea
D.
vomiting.
2011 NEET MCQ
AIPMT 2011 Mains
Which one of the following correctly represents the normal adult human dental formula?
A.
${3 \over 3},{1 \over 1},{3 \over 2},{1 \over 1}$
B.
${2 \over 2},{1 \over 1},{3 \over 2},{3 \over 3}$
C.
${2 \over 2},{1 \over 1},{2 \over 2},{3 \over 3}$
D.
${3 \over 3},{1 \over 1},{3 \over 3},{3 \over 3}$
2011 NEET MCQ
AIPMT 2011 Mains
One of the constituents of the pancreatic juice which is poured into the duodenum in humans is
A.
trypsinogen
B.
chymotrypsin
C.
trypsin
D.
enterokinase.
2011 NEET MCQ
AIPMT 2011 Prelims
Two friends are eating together on a dining table. One of them suddenly starts coughing while swallowing some food. This coughing would have been due to improper movement of
A.
epiglottis
B.
diaphragm
C.
neck
D.
tounge.
2011 NEET MCQ
AIPMT 2011 Prelims
Which one of the following enzymes carries out the initial step in the digestion of milk in humans?
A.
Trypsin
B.
Pepsin
C.
Rennin
D.
Lipase
2010 NEET MCQ
AIPMT 2010 Mains
If for some reason the parietal cells of the gut epithelium become partially non-functional, what is likely to happen?
A.
The pancreatic enzymes and specially the trypsin and lipase will not work efficiently.
B.
The pH of stomach will fall abruptly.
C.
Steapsin will be more effective.
D.
Proteins will not be adequately hydrolysed by pepsin into proteoses and peptones.
2010 NEET MCQ
AIPMT 2010 Mains
Jaundice is a disorder of
A.
excretory system
B.
skin and eyes
C.
digestive system
D.
circulatoy system.
2010 NEET MCQ
AIPMT 2010 Prelims
Carrier ions like Na+ facilitate the absorption of substances like
A.
amino acids and glucose
B.
glucose and fatty acids
C.
fatty acids and glycerol
D.
fructose and some amino acids.
2010 NEET MCQ
AIPMT 2010 Prelims
If for some reason our goblet cells are nonfunctional, this will adversely affect.
A.
production of somatostain
B.
secretion of sebum from the sebaceous glands
C.
maturation of sperms
D.
smooth movement of food down the intestine.
2009 NEET MCQ
AIPMT 2009
Which one of the following pairs of food components in humans reaches the stomach totally undigested?
A.
Starch and fat
B.
Fat and cellulose
C.
Starch and cellulose
D.
Protein and starch.
2009 NEET MCQ
AIPMT 2009
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
A.
rickets
B.
kwashiorkor
C.
pellagra
D.
marasmus.
2009 NEET MCQ
AIPMT 2009
A young infant may be feeding entirely on mother's milk which is white in colour but the stools which the infant passes out is quite yellowish. what is this yellow colour due to?
A.
Bile pigments passed through bile juice
B.
Undigested milk protein casein
C.
Pancreatic juice poured into duodenum
D.
Intestimal juice
2009 NEET MCQ
AIPMT 2009
Which one of the following statements is true regarding digestion and absorption of food in humans?
A.
Fructose and amino acids are absorbed through intestinal mucosa with the help of carrier ions like Na+.
B.
Chylomicrons are small lipoprotein particles that are transported from intestine into blood capillaries.
C.
About 60% of starch is hydrolysed by salivary amylase in our mouth.
D.
Oxyntic cells in our stomach secrete the proenzyme pepsinogen.
2008 NEET MCQ
AIPMT 2008
What will happen if the secretion of parietal cells of gastric glands is blocked with an inhibitor?
A.
In the absence of HCl secretion, inactive pepsinogen is not converted into the active enzyme pepsin.
B.
Enterokinase will not be released from the duodenal mucosa and so trypsinogen is not converted to trypsin.
C.
Gastric juice will be deficient in chymosin.
D.
Gastric juice will be deficient in pepsinogen.