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13 terms

Biology. Chapter 8

STUDY
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autotrophs
organisms that make their own food
heterotrophs
consumers, they rely on other organisms for their energy and food supply
ATP
one of the principal chemical compounds that living things use to store and release energy
photosynthesis
process by which plants use the sun's energy to convert water and carbon dioxide into sugars
pigment
light-absorbing molecule
chlorophyll
green pigment in plants that absorbs light energy used to carry out photosynthesis
thylakoids
saclike photosynthetic membranes
photosystems
light collecting units of the chloroplast
stroma
the region outside the thylakoid membranes
NADP+
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