Table of contents

1. A Review of General Chemistry5h 5m
2. Molecular Representations1h 14m
3. Acids and Bases2h 46m
4. Alkanes and Cycloalkanes4h 17m
5. Chirality3h 39m
6. Thermodynamics and Kinetics1h 22m
7. Substitution Reactions1h 48m
8. Elimination Reactions2h 30m
9. Alkenes and Alkynes2h 9m
10. Addition Reactions3h 19m
11. Radical Reactions1h 58m
12. Alcohols, Ethers, Epoxides and Thiols2h 42m
13. Alcohols and Carbonyl Compounds2h 17m
14. Synthetic Techniques1h 26m
15. Analytical Techniques:IR, NMR, Mass Spect7h 3m
16. Conjugated Systems6h 13m
17. Ultraviolet Spectroscopy51m
18. Aromaticity2h 34m
19. Reactions of Aromatics: EAS and Beyond5h 1m
20. Phenols55m
21. Aldehydes and Ketones: Nucleophilic Addition4h 56m
22. Carboxylic Acid Derivatives: NAS2h 51m
23. The Chemistry of Thioesters, Phophate Ester and Phosphate Anhydrides1h 10m
24. Enolate Chemistry: Reactions at the Alpha-Carbon1h 53m
25. Condensation Chemistry2h 9m
26. Amines1h 43m
27. Heterocycles2h 0m
28. Carbohydrates5h 53m
29. Amino Acids4h 20m
30. Peptides and Proteins2h 42m
31. Catalysis in Organic Reactions1h 30m
32. Lipids 2h 50m
33. The Organic Chemistry of Metabolic Pathways2h 52m
34. Nucleic Acids1h 32m
35. Transition Metals6h 14m
36. Synthetic Polymers1h 49m

33. The Organic Chemistry of Metabolic Pathways

Energy Production in Biochemical Pathways

Organic Chemistry

33. The Organic Chemistry of Metabolic Pathways

Energy Production in Biochemical Pathways

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Multiple Choice

Which of the following mechanisms does not generate ATP using an electron transport chain?

Oxidative phosphorylation

Photophosphorylation

Chemiosmosis

Substrate-level phosphorylation

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Verified step by step guidance

Understand the concept of ATP generation: ATP (adenosine triphosphate) is the energy currency of the cell, and it can be generated through different mechanisms, including oxidative phosphorylation, photophosphorylation, chemiosmosis, and substrate-level phosphorylation.

Define oxidative phosphorylation: This process occurs in the mitochondria and involves the electron transport chain, where electrons are transferred through a series of complexes, ultimately leading to the production of ATP.

Define photophosphorylation: This process occurs in the chloroplasts during photosynthesis, where light energy is used to drive electrons through an electron transport chain, resulting in the generation of ATP.

Define chemiosmosis: This is a mechanism that involves the movement of ions across a selectively permeable membrane, down their electrochemical gradient, which is coupled to ATP synthesis. It is a key part of both oxidative phosphorylation and photophosphorylation.

Define substrate-level phosphorylation: This is a process of ATP generation that occurs directly in metabolic pathways, such as glycolysis and the citric acid cycle, without the involvement of an electron transport chain.