MCQ Questions for Class 11 Biology Chapter 16 Digestion and Absorption with Answers

We have compiled the NCERT MCQ Questions for Class 11 Biology Chapter 16 Digestion and Absorption with Answers Pdf free download covering the entire syllabus. Practice MCQ Questions for Class 11 Biology with Answers on a daily basis and score well in exams. Refer to the Digestion and Absorption Class 11 MCQs Questions with Answers here along with a detailed explanation.

Digestion and Absorption Class 11 MCQs Questions with Answers

Question 1.
Function of HCl in stomach is to:
(a) Kill micro-organism of food
(b) Facilitate absorption of food
(c) Dissolve enzymes secreted by gastric glands
(d) Active trypsinogen to trypsin

Answer

Answer: (a) Kill micro-organism of food


Question 2.
Which of the following is different from others
(a) Gastrin
(b) Ptyalin
(c) Glucagon
(d) Secretin

Answer

Answer: (b) Ptyalin


Question 3.
Which one of the carbohydrate is monosaccharide:
(a) Glucose
(b) Sucrose
(c) Starch
(d) Cellulose

Answer

Answer: (a) Glucose


Question 4.
Protein are mainly required in the body for
(a) Growth
(b) Repair
(c) Both of the Above
(d) None of the Above

Answer

Answer: (c) Both of the Above


Question 5.
In frog, the surface of attachment of tongue is
(a) Hyoid apparatus
(b) Pterygoid
(c) Palatine
(d) Sphenoid

Answer

Answer: (a) Hyoid apparatus


Question 6.
Enterogastrone is:
(a) Hormone secreted by mucosa
(b) Enzyme secreted by mucosa
(c) Hormone secreted by duodenal mucosa
(d) Secreted by endocrine gland related to digestion

Answer

Answer: (c) Hormone secreted by duodenal mucosa


Question 7.
The cells in the wall of intestine are stimulated to produce secretin by-
(a) Cholecystokinin
(b) Bile juice
(c) Acid in chyme
(d) Gastrin

Answer

Answer: (c) Acid in chyme


Question 8.
Crypts of Lieberkuhn involved in:
(a) Secretion of succus entericus
(b) Secretion of rennin
(c) Secretion of ptyalin
(d) digestion of food

Answer

Answer: (a) Secretion of succus entericus


Question 9.
The cells of the epithelial lining in the vertebrate stomach are not damaged by HCl because of
(a) Mucus secretion covering the epithelium
(b) Neutrilizatioin of HCl by alkaline gastric juice.
(c) HCl being to dilute
(d) Epithelium being resistant to HCl

Answer

Answer: (a) Mucus secretion covering the epithelium


Question 10.
Lower jaw composed of in Rabbit:-
(a) Dentary
(b) Maxilla
(c) Premaxilla
(d) Palatine

Answer

Answer: (a) Dentary


Question 11.
Bacteria entering with contaminated food are killed in stomach by
(a) Pepsin
(b) Renin
(c) Sodium bicarbonate
(d) HCl

Answer

Answer: (d) HCl


Question 12.
Deficiency of Vitamin A causes:
(a) Retarted growth
(b) Scurvy
(c) Beri-Beri
(d) Rickets

Answer

Answer: (a) Retarted growth


Question 13.
Bilirubin and bilivirdin are found in
(a) Blood
(b) Bile
(c) Saliva
(d) None of the Above

Answer

Answer: (b) Bile


Question 14.
Which reserve a starving man first consumes
(a) Fat
(b) Protein
(c) Glycogen
(d) Vitamin

Answer

Answer: (c) Glycogen


Question 15.
Enzyme maltase in human gut acts on food at a pH of
(a) More than seven to change starch into maltose.
(b) Less than 7 to change starch into maltose.
(c) More than 7 to change maltose into glucose.
(d) Less than 7 to change maltose into glucose.

Answer

Answer: (c) More than 7 to change maltose into glucose.


Question 16.
Total no. of incisor teeth in rabbit is
(a) 8
(b) 6
(c) 10
(d) 4

Answer

Answer: (b) 6


Question 17.
Which is sweet in taste but is not sugar-
(a) Starch
(b) Saccharine
(c) Lactose
(d) Protein

Answer

Answer: (b) Saccharine


Question 18.
Which one is not an enzyme of digestive system
(a) Enterokinase
(b) Amylase
(c) Trypsin
(d) Enterogastrin

Answer

Answer: (d) Enterogastrin


Question 19.
Enamel of teeth is secreted by:
(a) Ameloblast
(b) Odontoblast
(c) Osteoblast
(d) Osteoclast

Answer

Answer: (a) Ameloblast


Question 20.
Hydrochloric acid is secreted by the:
(a) Paneth cells
(b) Goblet cells
(c) Chief cells
(d) Parietal cells

Answer

Answer: (d) Parietal cells


Question 21.
Ptyalin cannot work in stomach, because it becomes-
(a) Inactive due to HCl
(b) Inactive due to Renin
(c) Inactive due to Pepsin
(d) None of these

Answer

Answer: (a) Inactive due to HCl


Question 22.
To keep people healthy, strong and energetic and long-lived, it is necessary to provide them-
(a) High energy food
(b) Large amount of food
(c) Balanced diet
(d) Initiative and spirit

Answer

Answer: (c) Balanced diet


Question 23.
The structure which prevents entry of food into windpipe during swallowing in mammals is
(a) Larynx
(b) Glottis
(c) Epiglottis
(d) Pharynx

Answer

Answer: (c) Epiglottis


Question 24.
The most common concentrated source of proteins for vegetarians in our country is-
(a) Potatoes
(b) Meat
(c) Eggs
(d) Pulses

Answer

Answer: (d) Pulses


Question 25.
Secretion of pancreatic juice is stimulated by
(a) Gastrin
(b) Secretin
(c) Enterogastrone
(d) Enterokinase

Answer

Answer: (b) Secretin


Question 26.
Which of the following is a common passage in swallowing food and breathing-
(a) Pharynx
(b) Larynx
(c) Glottis
(d) Gullet

Answer

Answer: (a) Pharynx


Question 27.
Succus entericus is secreted by-
(a) Gastric glands
(b) Islets of langerhans
(c) Crypts of lieberkuhn & Brunner’s gland
(d) Goblet cells

Answer

Answer: (c) Crypts of lieberkuhn & Brunner’s gland


Question 28.
Vitamins are:
(a) Inorganic substances and can’t be synthesized by animals.
(b) Inorganic substances and can be synthesized by animals.
(c) Organic substances which cannot mostly be synthesized by animals.
(d) Organic substances which can mostly be synthesized by animals.

Answer

Answer: (c) Organic substances which cannot mostly be synthesized by animals.


Question 29.
Parietal cells of mucosa in stomach is secrets
(a) Mucin
(b) Pepsin
(c) Dilute HCl
(d) All of the Above

Answer

Answer: (c) Dilute HCl


Question 30.
The function of enterogasterone hormone is:
(a) to control excretion
(b) to inhibit gastric juice secretion
(c) regulate the absorption of food
(d) to stimulate gastric glands to release gastric juice

Answer

Answer: (b) to inhibit gastric juice secretion


Question 31.
Meat, milk and egg mainly supply us with
(a) Hormones
(b) Carbohydrates
(c) Proteins
(d) Fats

Answer

Answer: (c) Proteins


Question 32.
Night blindness is caused due to deficiency of Vitamin
(a) B
(b) C
(c) D
(d) A

Answer

Answer: (d) A


Question 33.
Vitamin promoting wound healing is:
(a) B
(b) A
(c) D
(d) C

Answer

Answer: (d) C


Question 34.
Excess amino acids are deaminated & converted into urea in
(a) Kidneys
(b) liver
(c) Spleen
(d) Pancreas

Answer

Answer: (b) liver


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