SESSION 13

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Last updated 4:18 AM on 3/12/25
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15 Terms

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Final electron acceptor
Oxygen is the final electron acceptor in the Electron Transport Chain (ETC).
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Fermentation
A less efficient pathway that produces 2 ATP per glucose molecule when oxygen is absent.
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Cellular Respiration ATP yield
Cellular respiration yields 29 ATP per glucose, making it significantly more efficient than fermentation.
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Chloroplasts
The site of photosynthesis, containing thylakoid membranes and the stroma.
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Thylakoid membranes
Location within chloroplasts where light reactions occur during photosynthesis.
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Stroma
The site of the Calvin cycle within chloroplasts.
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Oxidative phosphorylation
Occurs in mitochondria and generates ATP using energy from NADH and FADH2.
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Photophosphorylation
The process in chloroplasts where light energy drives ATP production.
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Photosynthesis process
An endergonic process converting light energy into glucose (6CO2 + 6H2O → C6H12O6 + 6O2).
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Cellular Respiration process
An exergonic process that releases energy from glucose (C6H12O6 + 6O2 → 6CO2 + 6H2O + 29 ATP).
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Energy efficiency comparison
Cellular respiration is more efficient than fermentation, yielding more ATP.
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Role of chlorophyll
Chlorophyll captures light energy for photosynthesis in thylakoid membranes.
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NADH and FADH2
Electron carriers that provide energy for ATP generation in oxidative phosphorylation.
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Endergonic vs. Exergonic reactions
Photosynthesis is endergonic (energy requiring), while cellular respiration is exergonic (energy releasing).
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Calvin cycle
The process in the stroma of chloroplasts where CO2 is fixed into glucose.