Why do plants need “resting” periods after photosynthesis during the day?

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I’m not sure if this is entirely correct but I’ve read online that plants ideally want a rest period after day light in order to properly grow and distribute nutrients throughout the plant. From my understanding of photosynthesis isn’t it an ongoing reaction so wouldn’t plants ideally want sunlight 24/7 if it doesn’t dry them out?

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Plants need to rest after photosynthesis because they get tired just like we do after exercising. During the resting period, they use the energy they produced to grow and repair tissues, produce new cells, and conserve water.

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