Question 1

What plant hormone is primarily responsible for phototropism?

Accepted Answer

Auxin

Answer

Gibberellin

Answer

Cytokinin

Answer

Ethylene

Question 2

What effect does geotropism have on roots?

Accepted Answer

Roots grow downward

Answer

Roots grow sideways

Answer

Roots do not grow at all

Answer

Roots grow upward

Question 3

Which plant hormone is known for promoting stem elongation and seed germination?

Accepted Answer

Gibberellin

Answer

Auxin

Answer

Ethylene

Answer

Abscisic acid

Question 4

What is the role of auxin in a plant's response to light?

Accepted Answer

Promotes cell elongation on the shaded side

Answer

Stimulates root growth

Answer

Inhibits cell growth

Answer

Enhances photosynthesis

Question 5

Which hormone is primarily associated with the process of fruit ripening?

Accepted Answer

Ethylene

Answer

Abscisic acid

Answer

Auxin

Answer

Gibberellin

Question 6

What is the primary effect of gibberellin on seed germination?

Accepted Answer

Breaks seed dormancy

Answer

Promotes leaf fall

Answer

Stimulates flower formation

Answer

Inhibits root growth

Question 7

What type of growth response is geotropism?

Accepted Answer

Growth in response to gravity

Answer

Growth in response to water

Answer

Growth in response to temperature

Answer

Growth in response to light

Question 8

Which plant response is characterized by movement towards a light source?

Accepted Answer

Phototropism

Answer

Hydrotropism

Answer

Geotropism

Answer

Thigmotropism

Question 9

What effect does auxin have on the growth of a plant's stem?

Accepted Answer

Promotes elongation of the stem

Answer

Strengthens the stem

Answer

Causes the stem to become shorter

Answer

Inhibits elongation

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