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

21. The Generation of Biochemical Energy

Coenzymes in Metabolism

GOB Chemistry

21. The Generation of Biochemical Energy

Coenzymes in Metabolism

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Multiple Choice

Select the correct statement.

When FAD is reduced, it gains 2 hydrogen ions and 2 electrons, forming FADH.

NAD⁺ represents an oxidized form of the coenzyme, and acts as an oxidizing agent.

FADH represents an oxidized form of the coenzyme, and acts as a reducing agent.

After CoA is oxidized, it forms Acetyl CoA.

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Verified step by step guidance

Understand the role of FAD and NAD+ in biochemical reactions. FAD (Flavin adenine dinucleotide) and NAD+ (Nicotinamide adenine dinucleotide) are coenzymes involved in redox reactions, where they act as electron carriers.

Recognize the process of reduction and oxidation. Reduction involves the gain of electrons, while oxidation involves the loss of electrons. In the context of FAD, when it is reduced, it gains electrons and hydrogen ions, forming FADH2, not FADH.

Identify the correct form of NAD+. NAD+ is the oxidized form of the coenzyme, meaning it can accept electrons and become reduced to NADH. As an oxidizing agent, NAD+ facilitates the oxidation of other molecules by accepting electrons from them.

Clarify the role of FADH2. FADH2 is the reduced form of FAD, meaning it has gained electrons and hydrogen ions. As a reducing agent, FADH2 can donate electrons to other molecules, facilitating their reduction.

Understand the transformation involving CoA. Coenzyme A (CoA) is involved in the transfer of acyl groups. When CoA is combined with an acetyl group, it forms Acetyl CoA, which is not a result of oxidation but rather a combination with an acetyl group.