Explore topic-wise MCQs in Biology.

This section includes 17 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.

1.

Which one of the following processes takes place in lakes during eutrophication?

A. Rapid destruction of algal growth
B. Excessive availability of dissolved oxygen
C. Loss of dissolved nutrients from water
D. Excessive entry of nutrient into water
Answer» E.
Discussion
2.

Which one of the following crops would be preferred forsowing in order to enrich soil with nitrogen?

A. Wheat
B. Mustard
C. Sunflower
D. Gram
Answer» E.
Discussion
3.

Which of the following vegetable is obtained from wild cabbage?

A. Lettuce
B. Brocoli
C. Kale
D. Kohlrabi
Answer» E.
Discussion
4.

Softening of mature ripe fruit is due to

A. Dissolution of middle lamella
B. Degradation of primary wall
C. Delignification
D. Removal of suberin deposits in cell wall
Answer» B. Degradation of primary wall
Discussion
5.

Which of the following plants is referred to as a living fossil?

A. Ephedra
B. Cycus
C. Gingko
D. Adiantum
Answer» D. Adiantum
Discussion
6.

Consider the following statements
1. Different plant species grow together
2. Light cannot penetrate into the lower strata full of undergrowth
Which of the following type of vegetation is characterized by the above?

A. Equatorial moist evergreen
B. Tropical deciduous
C. Mediterranean
D. Warm temperate broad leaved deciduous
Answer» B. Tropical deciduous
Discussion
7.

Consider the following plant
1. Guava
2. Mint
3. Sweet potato
The roots of which of these plants bear adventitious buds that developed into new individuals under favourable conditions

A. 1 and 2
B. 2 only
C. 3 only
D. 1, 2 and 3
Answer» D. 1, 2 and 3
Discussion
8.

Which one of the following is a fungus?

A. Agaricus
B. Funana
C. Rhizobium
D. Spirogyra
Answer» B. Funana
Discussion
9.

Which one of the following plants yeilds biodiesel or biofuel?

A. Hevea braziliensis
B. Jatropha curcas
C. Juniperus verginiana
D. Parthenium orgentatum
Answer» C. Juniperus verginiana
Discussion
10.

Math List-I (Modified stem) with List-II (example and select the correct answer using the codes given below the lists
List-I (Modiied stem)List-II (Example)
F. Rhizome1. Onion
G. Tuber2. Ginger
H. Bulb3. Potato
Codes:
FGH
A.321
B.231
C.213
D.132
A. A.
B. B.
C. C.
D. D.
Answer» C. C.
Discussion
11.

Which one of the following crops would be preferred for

A. Wheat
B. Mustard
C. Sunflower
D. Gram
Answer» E.
Discussion
12.

Which of the following plants is referred to as

A. Ephedra
B. Cycus
C. Gingko
D. Adiantum
Answer» D. Adiantum
Discussion
13.

Softening of mature ripe fruit

A. Dissolution of middle lamella
B. Degradation of primary wall
C. Delignification
D. Removal of suberin deposits in cell wall
Answer» B. Degradation of primary wall
Discussion
14.

Which of the following vegetable is obtained from

A. Lettuce
B. Brocoli
C. Kale
D. Kohlrabi
Answer» E.
Discussion
15.

Consider the following plant

A. 1 and 2
B. 2 only
C. 3 only
D. 1, 2 and 3
Answer» D. 1, 2 and 3
Discussion
16.

Which one of the following plants yeilds

A. Hevea braziliensis
B. Jatropha curcas
C. Juniperus verginiana
D. Parthenium orgentatum
Answer» C. Juniperus verginiana
Discussion
17.

Math List-I (Modified stem) with List-II (example and select the correct answer using the codes given below the lists

A. A.
B. B.
C. C.
D. D.
Answer» C. C.
Discussion