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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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