Explore topic-wise MCQs in Biology.

This section includes 15 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.

1.

What initiates a signal for defaecation?

A. Faeces in the colon
B. Faeces in the rectum
C. Faeces in the caecum
D. Faeces in the ileum
Answer» C. Faeces in the caecum
2.

Which is the principal organ for absorption?

A. Mouth
B. Stomach
C. Small intestine
D. Large intestine
Answer» D. Large intestine
3.

What are chylomicrons?

A. Very large protein-coated fat molecules
B. Very large fat coated protein molecules
C. Very small protein-coated fat molecules
D. Very small fat coated protein molecules
Answer» D. Very small fat coated protein molecules
4.

Which of the following is transported through active transport?

A. Sodium ions
B. Chloride ions
C. Fatty acids
D. Glycerol
Answer» B. Chloride ions
5.

Water is transported through a facilitated diffusion mechanism.

A. True
B. False
Answer» C.
6.

Which of the following is not absorbed by simple diffusion?

A. Glucose
B. Amino acids
C. Sodium ions
D. Chloride ions
Answer» D. Chloride ions
7.

What is meant by absorption of food?

A. End products of digestion are thrown out of the body
B. End products of digestion are egested out of the body
C. End products of digestion are transported to the body
D. End products of digestion are passed through the intestinal mucosa
Answer» E.
8.

What is the gross calorific value of proteins?

A. 4 kcal/g
B. 5.65 kcal/g
C. 9 kcal/g
D. 9.45 kcal/g
Answer» C. 9 kcal/g
9.

What is the physiologic value of food?

A. The actual amount of energy combustion of 1 g of food
B. The actual amount of energy combustion of 1 Kg of food
C. The actual amount of energy combustion of 1 mg of food
D. Amount of complete combustion of 1 g food in a bomb calorimeter
Answer» B. The actual amount of energy combustion of 1 Kg of food
10.

What is a bomb calorimeter?

A. Open metal chamber
B. Open brass chamber
C. The closed metal chamber filled with oxygen
D. The closed metal chamber filled with nitrogen
Answer» E.
11.

In constipation, there is increased liquidity of the faecal matter.

A. True
B. False
Answer» C.
12.

Which of the following is the symptom of diarrhoea?

A. Limited frequency of the bowel movement
B. No bowel movement
C. Abnormal frequency of bowel movement
D. The normal frequency of bowel movement
Answer» D. The normal frequency of bowel movement
13.

Where is the vomiting centre present in our bodies?

A. Medulla
B. Pons
C. Cerebellum
D. Hypothalamus
Answer» B. Pons
14.

Which of the following is a symptom of jaundice?

A. Bile salts deposit in the liver
B. Bile salts deposit in eyes
C. Bile pigments deposit in the liver
D. Bile pigments deposit in the eyes
Answer» E.
15.

What is the most common ailment of the alimentary canal?

A. Inflammation
B. Jaundice
C. Diarrhoea
D. Vomiting
Answer» B. Jaundice