Table of contents

1. Introduction to Anatomy & Physiology5h 43m
2. Cell Chemistry & Cell Components12h 36m
3. Energy & Cell Processes10h 6m
4. Tissues & Histology10h 3m
5. Integumentary System2h 20m
6. Bones & Skeletal Tissue2h 16m
7. The Skeletal System2h 35m
8. Joints2h 17m
9. Muscle Tissue2h 33m
10. Muscles1h 11m
11. Nervous Tissue and Nervous System1h 35m
12. The Central Nervous System1h 6m
- Introduction to the Central Nervous System
  18m
- The Cerebrum
  48m
13. The Peripheral Nervous System1h 26m
14. The Autonomic Nervous System1h 38m
15. The Special Senses2h 41m
16. The Endocrine System2h 48m
17. The Blood3h 22m
18. The Heart3h 42m
19. The Blood Vessels3h 35m
20. The Lymphatic System3h 16m
21. The Immune System14h 37m
22. The Respiratory System3h 20m
23. The Digestive System2h 5m
24. Metabolism and Nutrition4h 0m
25. The Urinary System2h 39m
26. Fluid and Electrolyte Balance, Acid Base Balance37m
27. The Reproductive System2h 5m
28. Human Development1h 21m
29. Heredity3h 32m

24. Metabolism and Nutrition

Cellular Respiration: Redox Reactions

Anatomy & Physiology

24. Metabolism and Nutrition

Cellular Respiration: Redox Reactions

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Multiple Choice

Where in the cell are both NAD+ and FAD reduced to form NADH and FADH2 during cellular respiration?

Golgi apparatus

Cytoplasm

Mitochondrial matrix

Endoplasmic reticulum

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Verified step by step guidance

Understand the role of NAD+ and FAD in cellular respiration: Both NAD+ and FAD are coenzymes that function as electron carriers. They are reduced to NADH and FADH2, respectively, during specific stages of cellular respiration.

Identify the stages of cellular respiration: Cellular respiration consists of glycolysis, the citric acid cycle (Krebs cycle), and oxidative phosphorylation. Each stage occurs in different parts of the cell.

Determine where NAD+ is reduced: During glycolysis, which occurs in the cytoplasm, NAD+ is reduced to NADH. However, the majority of NAD+ reduction occurs in the mitochondrial matrix during the citric acid cycle.

Determine where FAD is reduced: FAD is reduced to FADH2 specifically during the citric acid cycle, which takes place in the mitochondrial matrix.

Conclude the location: Since both NAD+ and FAD are reduced during the citric acid cycle, the mitochondrial matrix is the location where both processes occur simultaneously.