Question detail

Which of the following best describes the role of phototropism in plant survival?

Try the question, check the answer, then read the explanation to understand the curriculum point.

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At a glance

MCQ

Type

practice

Style

Topic

Plant hormones (biology only)

Question

A. It helps plants grow roots deeper into the soil.
B. It allows plants to maximize light exposure for photosynthesis.
C. It enables plants to resist drought conditions.
D. It promotes seed dispersal.

Answer

The correct option is It allows plants to maximize light exposure for photosynthesis.. This answer is correct because it matches the approved learning objective to describe phototropism as a plant growth response to light in the subtopic Control and coordination.

Explanation

The correct option is It allows plants to maximize light exposure for photosynthesis.. It allows plants to maximize light exposure for photosynthesis. is correct because it directly supports the approved learning objective to describe phototropism as a plant growth response to light. This belongs to the subtopic Control and coordination within Plant hormones (biology only), so the explanation must stay tied to that curriculum context. The other options are incorrect because they either do not answer this learning objective, use a vague statement, or move away from Control and coordination.

Common mistake

Misunderstanding Phototropism

Students often confuse phototropism with gravitropism, thinking both responses are triggered by light.

Clarify that phototropism specifically refers to growth in response to light, while gravitropism refers to growth in response to gravity. Use diagrams to illustrate the differences.

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