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Plant Nutrition and Respiration

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Nutrition

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How do plants make food for themselves?

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Plants make their own food, called glucose, through a process called photosynthesis.

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Photosynthesis takes place mainly in the leaves.

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Water is absorbed from the soil by the roots and goes up to the stem to the leaves.

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Leaves contain a green chemical called chlorophyll.

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This absorbs energy from sunlight.

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Leaves absorb carbon dioxide from the air.

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During photosynthesis, plants release oxygen into the air.

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Plants also need minerals for nutrition.

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Minerals are absorbed in the water by the roots.

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Respiration

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How do the plants breathe?

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Respiration gives the plant the energy it needs to grow and be healthy.

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Plants use the glucose made through photosynthesis and oxygen for respiration.

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During respiration, carbon dioxide and water is released into the air.

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An interesting thing about plants is how photosynthesis and respiration work together.

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During photosynthesis, plants produce oxygen and glucose. These are needed for respiration.

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During respiration, plants release carbon dioxide and water. These are needed for photosynthesis.

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All animals, including humans, need oxygen to live.

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Plants give our planet oxygen through photosynthesis.

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It is why trees and other plants are so important and we should look after them and not cut

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them down.