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

Intro to Glycolysis

Organic Chemistry

33. The Organic Chemistry of Metabolic Pathways

Intro to Glycolysis

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Multiple Choice

Which molecule acts as an allosteric activator of phosphofructokinase-1 in glycolysis?

AMP

NADH

Glucose

ATP

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Verified step by step guidance

Understand the role of phosphofructokinase-1 (PFK-1) in glycolysis: PFK-1 is a key regulatory enzyme that catalyzes the conversion of fructose-6-phosphate to fructose-1,6-bisphosphate, a crucial step in glycolysis.

Identify what an allosteric activator is: An allosteric activator is a molecule that binds to an enzyme at a site other than the active site, causing a conformational change that increases the enzyme's activity.

Consider the energy state of the cell: Glycolysis is a pathway that generates ATP, and its regulation is closely tied to the cell's energy needs. When energy is low, glycolysis is activated to produce more ATP.

Evaluate the molecules listed: AMP, NADH, Glucose, and ATP. AMP is a signal of low energy status in the cell, whereas ATP is a signal of high energy status. NADH is involved in other metabolic pathways, and glucose is a substrate for glycolysis.

Determine which molecule acts as an allosteric activator: AMP is known to activate PFK-1 by signaling low energy levels, thus promoting glycolysis to generate more ATP.