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Plant Hormones Quiz

Total questions: 14

Worksheet time: 7mins

Name
Class
Date
1.

Which hormone is often referred to as the 'stress hormone' in plants due to its involvement in responses to various environmental stresses?

a)

Gibberellin

b)

Ethylene

c)

Cytokinin

d)

Auxin

2.

In which part of the plant are auxins primarily synthesized?

a)

Leaves

b)

Roots

c)

Shoot tips

d)

Flowers

3.

What role does ethylene play in fruit ripening?

a)

Inhibits fruit ripening

b)

Accelerates fruit ripening

c)

Has no effect on fruit ripening

d)

Induces seed dormancy

4.

Which hormone is responsible for promoting lateral bud growth and inhibiting apical dominance?

a)

Ethylene

b)

Gibberellin

c)

Cytokinin

d)

Auxin

5.

Which plant hormone is involved in the regulation of seed dormancy and is often associated with inhibiting various aspects of plant growth?

a)

Gibberellin

b)

Cytokinin

c)

Abscisic Acid

d)

Auxin

6.

Which plant hormone is responsible for cell elongation and growth, especially in the shoot tips?

a)

Auxin

b)

Gibberellin

c)

Cytokinin

d)

Ethylene

7.

What is the function of abscisic acid (ABA) in plants during periods of water stress?

a)

Promotes stomatal opening

b)

Promotes seed germination

c)

Inhibits stomatal opening

d)

Stimulates shoot elongation

8.

What is the primary function of gibberellins in plants?

a)

Root development

b)

Flowering

c)

Leaf senescence

d)

Abscission

9.

Which hormone plays a crucial role in the regulation of fruit development, particularly in promoting fruit setting and preventing premature fruit drop?

a)

Cytokinin

b)

Ethylene

c)

Abscisic Acid

d)

Gibberellin

10.

Which plant hormone is involved in promoting seed germination and breaking dormancy?

a)

Abscisic Acid

b)

Gibberellin

c)

Ethylene

d)

Cytokinin

11.

In the apical dominance phenomenon, the apical bud suppresses the growth of lateral buds. Which hormone is primarily responsible for this process?

a)

Auxin

b)

Cytokinin

c)

Ethylene

d)

Jasmonic Acid

12.

The process of gravitropism, where roots grow towards gravity and shoots grow away from gravity, is influenced by the redistribution of which hormone?

a)

Auxin

b)

Brassinosteroids

c)

Jasmonic Acid

d)

Abscisic Acid

13.

The 'Triple Response' in plants, including a reduction in stem elongation, thickening of stems, and horizontal growth, is associated with which hormone?

a)

Auxin

b)

Ethylene

c)

Gibberellin

d)

Abscisic Acid

14.

Which plant hormone is responsible for inducing the closure of stomata during water stress and promoting desiccation tolerance?

a)

Auxin

b)

Gibberellin

c)

Abscisic Acid

d)

Cytokinin