13 terms

T.L. Bio - Chapter 8

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autotrophs
organism that uses energy from sunlight to produce its own food; also called producer
heterotrophs
organism that obtains energy from food it consumes
adenosine triphosphate (ATP)
one of the principal chemical compounds that living things use to store and release energy
photosynthesis
process by which plants and some other organisms use light energy to convert water and carbon dioxide to oxygen and sugars
pigment
light-absorbing molecule
chlorophyll
principal pigment of plants and other photosynthetic organisms; captures light energy
thylakoid
sac like photosynthetic membrane found in chloroplasts
photsystem
light collecting units of the chloroplast
stroma
region outside the thylakoid membranes in chloroplasts
NADPH(Nicotinamide adenine dinucleotide phosphate)
one of the carrier molecules that transfer high-energy electrons from chlorophyll to other molecules
light-dependent reactions
reactions of phyosynthesis that use energy from light to produce ATP and NADPH
ATP Synthase
large protein that uses energy from H+ ions to bind ADP and phosphate group together to produce ATP
Calvin Cycle
reactions of photosynthesis in which energy from ATP & NADPH is used to build high-energy compounds such as sugars