General Science – Biology MCQs

1. Bowman’s Capsule’ works as a part of the functional unit of which among the following human physiological system?

(A) Circulatory System
(B) Respiratory System
(C) Excretory System
(D) Reproductive System

Correct Answer: (C) Excretory System

Answer Explanation:

Bowman’s Capsule is related to the process of ‘Ultrafiltration’ in the functional units of kidneys called ‘nephrons’.Therefore, it is a part of the excretory system.

2. Plants which are adapted to grow in soils containing high concentration of salt are known as:

(A) Xerophytes
(B) Mesophytes
(C) Halophytes
(D) Thallophytes

Correct Answer: (C) Halophytes

3. Which among the following have a ‘mixed heart’ , that is the heart in which the oxygenated and the deoxygenated blood is mixed?

(A) Birds
(B) Fishes
(C) Reptiles
(D) Nematodes

Correct Answer: (C) Reptiles

Answer Explanation:

Reptiles and Amphibians have a mixed heart.

4. Saffron is obtained from which among the following parts of the plant?

(A) Stigma
(B) Anther
(C) Stamen
(D) Pollen

Correct Answer: (A) Stigma

5. The bacterium ‘Escherichia coli’ is found mainly in:

(A) Human Intestine
(B) Pteridophytes
(C) Root Nodules of leguminous plants
(D) Paddy fields for nitrogen fixation

Correct Answer: (A) Human Intestine

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