8.2 - Cellular respiration (HL)
Assessment statements
| DCS Topic Code | Statement | Guidance |
| 8.2.U1 | Cell respiration involves the oxidation and reduction of electron carriers. | |
| 8.2.U2 | Phosphorylation of molecules makes them less stable. | |
| 8.2.U3 | In glycolysis, glucose is converted to pyruvate in the cytoplasm. | |
| 8.2.U4 | Glycolysis gives a small net gain of ATP without the use of oxygen. | The names of the intermediate compounds in gylcolysis is not required. |
| 8.2.U5 | 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. | |
| 8.2.U6 | In the Krebs cycle, the oxidation of acetyl groups is coupled to the reduction of hydrogen carriers, liberating carbon dioxide. | The names of the intermediate compounds in the Krebs cycle is not required. |
| 8.2.U7 | Energy released by oxidation reactions is carried to the cristae of the mitochondria by reduced NAD and FAD. | |
| 8.2.U8 | Transfer of electrons between carriers in the electron transport chain in the membrane of the cristae is coupled to proton pumping. | |
| 8.2.U9 | In chemiosmosis protons diffuse through ATP synthase to generate ATP. | |
| 8.2.U10 | Oxygen is needed to bind with the free protons to maintain the hydrogen gradient, resulting in the formation of water. | |
| 8.2.U11 | The structure of the mitochondrion is adapted to the function it performs. | |
| 8.2.A1 | Electron tomography used to produce images of active mitochondria. | |
| 8.2.S1 | Analysis of diagrams of the pathways of aerobic respiration to deduce where decarboxylation and oxidation reactions occur. | |
| 8.2.S2 | Annotation of a diagram of a mitochondrion to indicate the adaptations to its function. |
Notes
| 8.2_notes.pdf |
Lesson 1 - Glycolysis
Pre-work
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8.1a - Glycolysis
Homework
- Read pp. 380-388
- Complete DBQs on pages 385 (below left), 387 (below middle) and 388 (below right)
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Lesson 2 - Aerobic respiration
8.1b - Mitochondria structure
8.1c - Aerobic respiration HL (1/2)
- Complete Kognity 8.2
Review PowerPoint
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