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16 Cards in this Set
- Front
- Back
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How many ATP molecules does cellular respiration produce from one glucose molecule?
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36 ATP
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Cellular respiration is...
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...the metabolic start for the synthesis of all biomolecules.
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Where do carbs/fats come from originally?
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Algae and plants
Photosynthesis |
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Photosynthesis
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Making ATP (NADPH) to run the cell and then used to save energy as reduced carbon in fats/carbs. Uses CO2 and releases O2. (Only in plants)
Plant cells have: chloroplasts & mitochondria. |
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Energy related organelles
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Photosynthesis: choloroplasts
Cellular respiration: mitochondrion |
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Photosynthesis formula:
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CO2 + H2O --> C6H12O6 + O2
Carbon + Water --> Glucose + Oxygen Photosynthesis is biochemically the reverse of cellular respiration. |
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Two parts of photosynthesis:
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- Photophosphorylation
- the Calvin cycle |
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Photophosphorylation
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Where water molecules are oxidized, they lose their electrons along with hydrogen ions.
Light + Water (H20) --> ATP + Oxygen (O2) |
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The Calvin Cycle
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When carbon becomes reduced to carbs using ATP (and NADPH) from photophosphorylation and electron transport.
ATP + Carbon (CO2) + Water (O2) --> Glucose (C6H12O6) Carbon is 'reduced.' |
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Photophosphorylation - light perception
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The energy to power high energy electron flow comes from sunlight. Light energy --> chemical energy.
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Plants absorb (colored) lights...
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Plants absorb blue, violet, orange and red lights to make energy. (Chlorophyll A & B)
Green is not absorbed by reflected to give plants their green color. Carotenoids (yellow & orange) |
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Thylakoid grana
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The inner stacks of membrane used for photosynthesis.
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Respiration vs. Photosynthesis
Similarities |
- Both use an electron transport chain to pump H+ ions
across a membrane - Uses the stored chemical energy from the H+ gradient to synthesize ATP. |
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Respiration vs. Photosynthesis
Differences |
Oxidative Phosphorylation: In Mitochondrion, Gets its electrons from O2 and they end up in H2O
Photophosphorylation: In Chloroplast, Gets its electrons from H2O and they end up in NADPH |
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Autotrophs
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"Self-feeders," those that produce their own energy
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Heterotrophs
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Consume other plants or animals or decompose organic material
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