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

The Citric Acid Cycle

GOB Chemistry

21. The Generation of Biochemical Energy

The Citric Acid Cycle

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Multiple Choice

How many final high-energy molecules are produced in phase C of the citric acid cycle?

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Verified step by step guidance

Understand that the citric acid cycle, also known as the Krebs cycle, is a series of chemical reactions used by all aerobic organisms to generate energy through the oxidation of acetate derived from carbohydrates, fats, and proteins into carbon dioxide.

Recognize that the citric acid cycle produces high-energy molecules such as ATP, NADH, and FADH2, which are used in the electron transport chain to produce ATP.

Identify that phase C of the citric acid cycle refers to the steps where high-energy molecules are produced. Specifically, these steps include the conversion of succinyl-CoA to succinate, which produces GTP (or ATP), and the conversion of succinate to fumarate and malate to oxaloacetate, which produce FADH2 and NADH, respectively.

Count the high-energy molecules produced in these steps: 1 GTP (or ATP), 1 FADH2, and 1 NADH.

Conclude that the total number of high-energy molecules produced in phase C of the citric acid cycle is 3, which includes 1 GTP (or ATP), 1 FADH2, and 1 NADH.