Photosynthesis is a process where plants make food; they use their leaves to trap light energy in order to change water, minerals and carbon dioxide into oxygen and organic compounds. Most plants have a chemical called chlorophyll that is used in photosynthesis; chlorophyll absorbs energy from the sun and turns it into chemical energy. Most plants quit producing chlorophyll in the fall; that process leads to leaves changing color.

 Dark Reactions (Calvin Cycle)
 Key Terms to Know
 Light Reactions
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EEK! A Tree's True Color
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Re: Where do cacti perform photosynthesis?
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