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Muscular System

How does the sun's energy get to the muscles of a human body?


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October 31, 2007 9:04PM

The sun's energy is used by plants in photosynthesis to produce carbohydrates. Humans ingest carbohydrates when they eat foods that have fruits and vegetables in them. The body digests carbohydrates in the small intestine and then stores it in the muscles and liver until it is needed in form of glucose. The muscles then burn the glucose through a process of cellular respiration that uses an ATP molecule to release the energy and and provide work.