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Question

The response of plants to the relative lengths of day light is called

A

Photophosphorylation

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B

Phototropism

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C

Photoperiodism

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D

Vernalization

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Solution

The correct option is C
Photoperiodism

Photoperiodism can be defined as the developmental responses of plants to the relative lengths of light and dark periods.

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Response of a plant to the changing relative length of the day and night is called phototropism.

The response of a plant to the changing relative length of the day and night is called phototropism.

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.......... Relative lengths of daylight and darkness that affect the physiology and behaviour of an organism.

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