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15 terms

Mazeikas Biology - Chapter 8

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adenosine triphosphate (ATP)
compound used by cells to store and release energy
autotroph
organism that is able to capture energy from sunlight or chemicals and use it to produce its own food from inorganic compunds; also called a producer
heterotroph
organism that obtains food by consuming other living things
photosynthesis
process used by plants and other autotrophs to capture light energy and use it to pawer chemical reactions that convert carbon dioxide and water into oxygen adn energy-rich carbohydrates such as sugars and starches
pigment
light-absorbing molecule used by plants to gather the sun's energy
light-dependent reactions
set of reactions in photosynthesis that use energy from light to produce ATP and NADPH
chlorophyll
prinicple pigment of plants and other photosynthetic organisms
light-independent reactions
set of reactions in photosyntheses that do not require light; energy from ATP and NADPH is used to build high-energy compounds such as sugar
thylakoid
saclike photosynthetic membranes found in chloroplasts
stroma
fluid portion of the cloroplasto
NADP+
carrier molecule that transfers high-energy electrons from chlorophyll to otehr moleculesproc
photosystem
cluster of chlorophyll and proteins found in thylakoids
electron transport chain
series of electron carrier proteins that shuttle high-enrgy electrons during ATP-generating reactions
ATP synthase
cluster of proteins that span the cell membrane and allow hydrogen ions (H+) to pass through it
Calvin cycle
light-independent reactions of photosynthesis in which energy from ATP and NADPH is used to build high-enrgy compunds such as sugar