NEET MCQ (digestion and absorption)

 Digestion and absorption 

54. Canines are completely absent in

A. Rabbit
B. Squirrel
C. Rat
D. All of these
Answer: D

_______________________

55. Which of the following is present in the saliva of all mammals?

A. Mucin
B. Salivary amylase
C. Diastase
D. Amylopsin
Answer: A

_______________________

56. Which of the following state

A. The first buccal phase of deglutition is voluntary
B. Larynx rises
C. Epiglottis closes off the trachea
D. None of these
Answer: D
_______________________

57. The substances which increase biliary synthesis from liver e.g. bile salts are called as

A. Choleretic
B. Cholagogues
C. Chloragogen
D. Cholecystokinin-Pancreozymin
Answer: A
_______________________

58. Which of the following digestive enzyme coagulates blood by hydrolyzing fibrinogen to fibrin? It also helps predatory mammals to digest the blood they drink from their prey

A. Pepsin
B. Trypsin
C. Thrombin
D. Carboxypeptidase
Answer: B

_______________________

59. In sodium-dependent glucose transport, i.e., symport or co-transport

A. Na+ is transported passively from the lumen into the gut, glucose is transported against concentration gradient
B. Na+ and glucose both are transported actively into the gut from lumen
C. Na+ and glucose both are transported passively
D. Na+ is transported actively and glucose passively
Answer: A

_______________________

60. Which statement is not true regarding the digestive system of frog?

A. Oxyntic cells are present in stomach
B. Small intestine is made up of two parts: duodenum
and ileum
C. A large number of trne villi are present with ileum
D. The function of rectum is to absorb water
Answer: C

_______________________

61. Vermiform appendix is present in

(a) Frog
(b) Rabbit
(c) Human
A. (c) only
B. (b) and (c) only
C. (a) and (b) only
D. All three
Answer: B

_______________________

62. The infection by a protozoan such as Entamoeba can lead to colitis which is characterized by

A. Loose motion
B. Bloody feces
C. Dehydration
D. All of these
Answer: D

_______________________

63. Which of the following can be taken as provitamins

A. Ergosterol
B. Carotene
C. Calciferol
D. Both (1 ) and (2)
Answer: D

_______________________

64. Which of the following can be taken as isotelic vitamins?

A. Thiamine and phylioquinone
B. Calciferol and niacin
C. Phylloquinone and menadione
D. Retinol and riboflavin
Answer: C

_______________________

65. People recovering from long illness are often advised to include the alga Spirulina in their diet because it:

A. Makes the food easy to digest
B. Is rich in protein and vitamin B12
C. Has antibiotic properties
D. Restores the intestinal flora
Answer: B