Plant nutrients - SS2 Agriculture Past Questions & Answers - page 1

1

What is the primary function of nitrogen (N) in plants?

A

Enhancing root growth

B

Aiding in photosynthesis

C

Preventing disease

D

Improving fruit quality

CORRECT OPTION: b
2

Which of the following is a macro nutrient?

A

Iron (Fe)

B

Zinc (Zn)

C

Potassium (K)

D

Boron (B)

CORRECT OPTION: c
3

Which nutrient is essential for the formation of chlorophyll?

A

Manganese (Mn)

B

Phosphorus (P)

C

Iron (Fe)

D

Copper (Cu)

CORRECT OPTION: c
4

What is a common symptom of potassium (K) deficiency in plants?

A

Wilting

B

Yellowing of leaves

C

Interveinal chlorosis

D

Brittle leaves

CORRECT OPTION: a
5

Which nutrient is crucial for nitrogen fixation in legume plants?

A

Molybdenum (Mo)

B

Zinc (Zn)

C

Copper (Cu)

D

Chlorine (Cl)

CORRECT OPTION: a
6

What role does phosphorus (P) play in plants?

A

Resistance to diseases

B

Energy transfer

C

Water uptake

D

Lignin synthesis

CORRECT OPTION: b
7

Which nutrient deficiency can result in dark green or purplish leaves?

A

Nitrogen (N)

B

Iron (Fe)

C

Zinc (Zn)

D

Manganese (Mn)

CORRECT OPTION: b
8

What is the primary function of boron (B) in plants?

A

Root development

B

Protein synthesis

C

Cell division

D

Enzyme activation

CORRECT OPTION: c
9

What is the primary role of copper (Cu) in plants?

A

Photosynthesis

B

Sugar transport

C

Nitrogen fixation

D

Growth regulation

CORRECT OPTION: d
10

What is a common symptom of zinc (Zn) deficiency in plants?

A

Interveinal chlorosis

B

Wilting

C

Yellowing of leaves

D

Dark green leaves

CORRECT OPTION: a
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