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organisms that make their own food


consumers, they rely on other organisms for their energy and food supply


one of the principal chemical compounds that living things use to store and release energy


process by which plants use the sun's energy to convert water and carbon dioxide into sugars


light-absorbing molecule


green pigment in plants that absorbs light energy used to carry out photosynthesis


saclike photosynthetic membranes


light collecting units of the chloroplast


the region outside the thylakoid membranes


one of the carrier molecules that transfers high-energy electrons from chlorophyll to other molecules

light dependent reactions

reactions of photosynthesis that use energy from light to produce ATP and NADPH

ATP synthesis

large protein that uses energy from H+ ions to bind ADP and a phosphate group together to make ATP

Calvin cycle

reactions of photosynthesis in which energy from ATP and NADPH is used to build high-energy compounds such as sugars

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