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Photosynthesis

How organisms obtain energy

TermDefinition
NADP This molecule accepts and holds 2 high-energy electrons along with a hydrogen ion produced by light absorption.
Photosynthesis Where plants use sunlight energy to convert water and carbon dioxide into sugars, starches, and oxygen.
Light dependent reactions Requires light, produce oxygen, convert ADP and NADP into energy carriers like ATP and NADPH.
Chlorophyll A molecule in chloroplasts cells in the form of "a" and "b" that absorb energy from sunlight.
ATP Synthase Spans the membrane and allows hydrogen ions to pass through it.
Autotroph Organisms such as plants, which make their own food.
Pigment Light absorbing, and used by plants to gather the sun's energy.
Heterotroph Obtain energy from the foods they consume.
Calvin cycle Uses ATP and NADPH from light-dependent reactions to produce high-energy sugars.
Adenosine triphosphate The chemical fuel that all living things use for energy. (AKA: ATP)
Stroma The region outside the thylakoid membranes where the Calvin cycle takes place.
Thylakoid Saclike photosynthetic membrane within a chloroplast cell that organize chlorophyll and other pigments.
Photosystem Known as clusters of light-collecting units within the chloroplast.
Chloroplast Located in green plant cells. Is a plastid that contains chlorophyll that uses light energy to produce sugars (for food) during photosynthesis.
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