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 are like little factories that make their own food using sunlight, water and air. This process is called photosynthesis and it happens mostly in the leaves of the plants. When plants make food, they also make oxygen that we breathe.
But plants don’t just need food to grow and stay healthy. They also need rest. Resting means that plants stop making food for a while and use the energy they stored in their roots or stems. Resting also helps plants to move the nutrients they made to other parts of the plant, like the flowers or fruits. Resting also helps plants to grow new roots and leaves.
Plants usually rest at night when there is no sunlight. But sometimes plants need more rest than just one night. For example, some plants rest during winter when it is too cold or dry for them to grow. This is called dormancy and it helps plants to survive harsh conditions.

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