Elementary Knowledge of Human Body and Its Important Organs NDA Questions

NDA BIOLOGY

Elementary Knowledge of Human Body and Its Important Organs MCQ Questions


1.
The human digestive system begins digestion of which nutrient in the mouth itself?
A.
Proteins
B.
Nucleic acids
C.
Fats
D.
Carbohydrates
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ANSWER :
D. Carbohydrates
2.
The enzyme pepsin, which digests proteins, is secreted by which organ?
A.
Pancreas
B.
Stomach
C.
Small intestine
D.
Liver
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ANSWER :
B. Stomach
3.
Bile is produced by which organ and stored in which structure?
A.
Gallbladder; stored in liver
B.
Stomach; stored in duodenum
C.
Pancreas; stored in stomach
D.
Liver; stored in gallbladder
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ANSWER :
D. Liver; stored in gallbladder
4.
The longest part of the human alimentary canal is:
A.
Oesophagus
B.
Small intestine
C.
Stomach
D.
Large intestine
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ANSWER :
B. Small intestine
5.
Digestion of fats is primarily carried out in:
A.
Mouth
B.
Large intestine
C.
Small intestine
D.
Stomach
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ANSWER :
C. Small intestine
6.
Which cells of the gastric glands secrete hydrochloric acid (HCl)?
A.
Parietal (oxyntic) cells
B.
Chief cells
C.
Goblet cells
D.
G cells
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ANSWER :
A. Parietal (oxyntic) cells