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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15 Answers

Anonymous 0 Comments

Because plants are accustomed to the natural circadian rhythm. Plants, just like all living things, are not designed to run 24/7 like a robot.

Anonymous 0 Comments

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.

Anonymous 0 Comments

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.

Anonymous 0 Comments

Because plants are accustomed to the natural circadian rhythm. Plants, just like all living things, are not designed to run 24/7 like a robot.

Anonymous 0 Comments

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.

Anonymous 0 Comments

Because plants are accustomed to the natural circadian rhythm. Plants, just like all living things, are not designed to run 24/7 like a robot.

Anonymous 0 Comments

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.

Anonymous 0 Comments

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.

Anonymous 0 Comments

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.

Anonymous 0 Comments

In addition to the answers on here about resting and restoration periods, there is another reason. There is a group of plants known as C4 plants that do photosynthesis a bit differently. These plants tend to grow in hot, dry climates, and so they have an adaptation to help them survive. They only do part of photosynthesis during the day, enough to store carbon until later that night. Then, during the night, they open their pores (called stomata) in order to finish the second half of their photosynthesis, the portion that releases oxygen gas. By keeping their stomata closed during the day, these plants minime the amount of water their lose into the air on the hot, dry days of the climates they grow in.