Table of contents

1. Matter and Measurements4h 31m
2. Atoms and the Periodic Table5h 23m
3. Ionic Compounds2h 18m
4. Molecular Compounds2h 18m
5. Classification & Balancing of Chemical Reactions3h 17m
6. Chemical Reactions & Quantities2h 27m
7. Energy, Rate and Equilibrium3h 46m
8. Gases, Liquids and Solids3h 25m
9. Solutions4h 10m
10. Acids and Bases3h 29m
11. Nuclear Chemistry56m
BONUS: Lab Techniques and Procedures1h 38m
BONUS: Mathematical Operations and Functions47m
12. Introduction to Organic Chemistry1h 34m
13. Alkenes, Alkynes, and Aromatic Compounds2h 12m
14. Compounds with Oxygen or Sulfur1h 6m
15. Aldehydes and Ketones1h 1m
16. Carboxylic Acids and Their Derivatives1h 11m
17. Amines39m
18. Amino Acids and Proteins1h 51m
19. Enzymes1h 37m
20. Carbohydrates1h 41m
21. The Generation of Biochemical Energy2h 8m
22. Carbohydrate Metabolism2h 22m
23. Lipids2h 26m
24. Lipid Metabolism1h 45m
25. Protein and Amino Acid Metabolism1h 37m
26. Nucleic Acids and Protein Synthesis2h 54m

25. Protein and Amino Acid Metabolism

Review of Metabolism

GOB Chemistry

25. Protein and Amino Acid Metabolism

Review of Metabolism

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Multiple Choice

In the synthetic pathway of serine, 3-phosphoglycerate must first be converted into 3-phosphohydroxypyruvate.

Identify the type of reaction represented by this conversion.

Condensation

Reduction

Transamination

Oxidation

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Verified step by step guidance

Examine the chemical structures of 3-phosphoglycerate and 3-phosphohydroxypyruvate. Notice that 3-phosphoglycerate has a hydroxyl group (-OH) attached to the second carbon, while 3-phosphohydroxypyruvate has a carbonyl group (C=O) at the same position.

Identify the change in functional groups from a hydroxyl group to a carbonyl group. This transformation typically involves the loss of hydrogen atoms and the gain of an oxygen atom.

Recognize that the conversion of an alcohol group to a carbonyl group is characteristic of an oxidation reaction. In oxidation, the molecule loses electrons, often through the removal of hydrogen atoms or the addition of oxygen.

Understand that oxidation reactions are common in metabolic pathways, where substrates are converted into more oxidized forms to facilitate further biochemical transformations.

Conclude that the conversion of 3-phosphoglycerate to 3-phosphohydroxypyruvate is an oxidation reaction, as evidenced by the change from a hydroxyl group to a carbonyl group.