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Test 3

Biology

14 cards·by mcg321
Study this deck
Autotrophs
produce their own food
Photoautotrophs
produce organic molecules from inorganic molecules using light energy
Heterotrophs
unable to manufacture their own food from inorganic materials; rely on other organisms.
Photosynthesis
makes sugar and oxygen gas from carbon dioxide and water
Stroma
thick fluid enclosed by inner membrane; location of sugar synthesis
Photosynthesis
H2O is oxidized, CO2 is reduced
Cellular Respiration
glucose is oxidized , O2 is reduced
Light Reactions
occur in the thylakoid membranes; converts light energy to chemical energy - ATP and NADPH; produces O2 as a waste product
Calvin Cycle
Occurs in stroma; assembles sugar molecules from CO2 using ATP and NADPH
Chlorophyll a
Absorbs blue-violet and red light; reflects green light; participates directly in the light reactions
Chlorophyll b
absorbs blue and orange light; reflects yellow-green; conveys absorbed energy to chlorophyll a
Carotenoids
yellow-orange pigments that absorb mainly blue-green light; provides photoprotection
Photon
fixed quantity of light energy
Photosystems
clustrs of chlorophyll molecules, other pigments, and proteins; found in the thylakoid space