Question

. Assertion (A): Phototropism is a directional growth
movement.
Reason (R): It occurs in the direction of light.
Correct option: (a)
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Answer 1

Answer:

• Both are correct answers R is the correct reason of A....

Answer 2

Answer:

the answer is correct "when reason of assertion is true"

Explanation:

The orientation of a plant or other organism in response to light us called phototropism, either towards the source of light ( positive phototropism ) or away from it ( negative phototropism ).

The growth of the parts of plants in response to the force of gravity is called geotropism. The upward growth of plant shoots is an instance of negative geotropism ; the downward growth of roots is positive geotropism.

Activity

Phototropism: place a sunflower in an open field in any direction, it will automatically turn towards sunlight. Its stem grows in upward direction showing positive phototropism.