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

Intro to Metabolism

GOB Chemistry

21. The Generation of Biochemical Energy

Intro to Metabolism

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Multiple Choice

Which one of the following catabolism stages produces NADH?

Electron transport chain

Glycogenolysis

Digestion

Citric acid cycle

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Verified step by step guidance

Understand the role of NADH in cellular metabolism: NADH is a key electron carrier in cellular respiration, transferring electrons to the electron transport chain.

Identify the stages of catabolism: Catabolism involves breaking down molecules to release energy, and it includes stages like digestion, glycolysis, the citric acid cycle, and the electron transport chain.

Review the citric acid cycle: Also known as the Krebs cycle, this stage occurs in the mitochondria and is crucial for oxidizing acetyl-CoA to CO2, while reducing NAD+ to NADH.

Compare the stages: Digestion breaks down food into smaller molecules, glycogenolysis converts glycogen to glucose, and the electron transport chain uses NADH to produce ATP, but does not produce NADH itself.

Conclude that the citric acid cycle is the stage where NADH is produced, as it involves multiple steps where NAD+ is reduced to NADH during the oxidation of acetyl-CoA.