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19 terms

Chapter 5

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Photosynthesis
process by which plants and some other organisms use light energy to convert water and carbon dioxide into oxygen and glucose
Autotroph
an organism that makes its own food
Heterotroph
an organism that cannot make its own food
Cellular respiration
Process that uses glucose to make energy, ATP
Pigment
Light-absorbing molecule
Chlorophyll
Pigment
Carotenoids
Pigments
Thylakoids
A flattened membrane sac inside the chloroplast, used to convert light energy to chemical energy.
Electron transport chain
A series of molecules that excited electrons pass
NADPH
electron carrier that provides high-energy electrons to power the third stage of photosynthesis
Carbon dioxide fixation
The transfer of the carbon found in carbon dioxide into sugar (glucose)
Calvin cycle
reactions of photosynthesis in which energy from ATP and NADPH is used to build high-energy compounds such as sugar
Aerobic
With oxygen
Anaerobic
Without oxygen
Glycolysis
1st step in cellular respiration producing pyruvate, ATP and NADH
NADH
Electron carrier
Kreb's Cycle
2nd step in cellular respiration producing Carbon dioxide, ATP, NADH and FADH2
FADH2
electron carrier
Fermentation
The 2nd step in cellular respiration when no oxygen is present, creates either lactate or ethanol & carbon dioxide