Understandings:
- Cell respiration involves the oxidation and reduction of electron carriers
- Phosphorylation of molecules makes them less stable
- In glycolysis, glucose is converted to pyruvate in the cytoplasm
- Glycolysis gives a small net gain of ATP without the use of oxygen
- In aerobic cell respiration pyruvate is decarboxylated and oxidized, and converted into acetyl compound and attached to coenzyme A to form acetyl coenzyme A in the link reaction.
- In the Krebs cycle, the oxidation of acetyl groups is coupled to the reduction of hydrogen carriers, liberating carbon dioxide.
- Energy released by oxidation reactions is carried to the cristae of the mitochondria by reduced NAD and FAD.
- Transfer of the electrons between carriers in the electron transport chain in the membrane of the cristae is coupled to proton pumping.
- In chemiosmosis protons diffuse through ATP synthase to generate ATP.
- Oxygen is needed to bind with the free protons to maintain the hydrogen gradient, resulting in the formation of water
- The structure of the mitochondrion is adapted to the function it performs
- Electron tomography used to produce images of active mitochondria.
- Analysis of diagrams of the pathways of aerobic respiration to decide where decarboxylation and oxidation reactions occur.
- Annotations of a diagram of mitochondrion to indicate the adaptations to its function.
- Paradigm shift-chemiosmotic theory led to a paradigm shift in the field of bioenergetics.
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Powerpoints
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Homeworks
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Helpful Links, articles, and videos
Virtual Respiration
https://docs.google.com/document/d/12d1bGXTLsLE9CD0SZDDjZiHBbcbMdQYktIAM3aeMWzM/edit
Virtual Respiration
https://docs.google.com/document/d/12d1bGXTLsLE9CD0SZDDjZiHBbcbMdQYktIAM3aeMWzM/edit
| aerobic_respiration_2017.pptx |
Practice Questions
| 8.2_practice.pdf |
