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Biology Chapter 8

TermDefinition
autotroph organisms that produce their own food.
heterotrophs organisms that obtain energy from other living organisms.
Adenosine Triphosphate (ATP) A 5-carbon sugar that cells use to store energy and release energy.
Photosynthesis a process by which energy is created from sunlight, water, and carbon dioxide in a plant. Produced high-energy carbs and oxygen.
pigment light absorbing molecules that absorb the sun's energy.
chlorophyll the principal pigment in a plant cell. Chlorophyll A and B.
thylakoid sac-like photosynthetic membranes inside of the chloroplast.
photosystem clusters of light-collecting units in the chloroplast.
stroma the part of the chloroplast outside of the thylakoids, where the Calvin cycle takes place.
NADP+ a carrier molecule that that hold 2 high-energy electrons and a hydrogen ion.
light-dependent reactions a reaction that takes the energy from light to produce ATP and NADPH.
ATP synthase a protein in the thylakoid membrane that allows H+ ions to pass through it.
Calvin Cycle a cycle in which the energy in ATP and NADPH is used to build high-energy compounds that can be stored for a long time.
Created by: meg_strayer
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