Question

why does the photosynthesis not occur during ningth time​

Answer 1

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The proteins involved in photosynthesis need to be 'on' when they have the sunlight they need to function, but in the dark, when photosynthesis is not possible, they need to idle, like the engine of a car at a traffic light. ... This cascade thus keeps photosynthesis on standby until light is available again.

Answer 2

The proteins involved in photosynthesis need to be 'on' when they have the sunlight they need to function, but in the dark, when photosynthesis is not possible, they need to idle, like the engine of a car at a traffic light. ... This cascade thus keeps photosynthesis on standby until light is available again