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 Heart2h 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

3. Energy & Cell Processes

Redox Reactions

Anatomy & Physiology

3. Energy & Cell Processes

Redox Reactions

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Multiple Choice

An electron carrier before it harvests energy from glucose molecules in a series of gradual steps is:
a) Pyruvate.
b) AMP.
c) ATP.
d) NAD⁺.
e) NADH.

Pyruvate.

AMP.

ATP.

NAD⁺.

NADH.

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Verified step by step guidance

Understand the role of electron carriers in cellular respiration. Electron carriers are molecules that transport electrons during the metabolic processes of cellular respiration.

Identify the main electron carriers involved in cellular respiration. The primary electron carriers are NAD+ (Nicotinamide adenine dinucleotide) and FAD (Flavin adenine dinucleotide).

Recognize the function of NAD+ in the process. NAD+ acts as an electron acceptor, becoming reduced to NADH as it gains electrons during glycolysis and the Krebs cycle.

Differentiate between NAD+ and NADH. NAD+ is the oxidized form, ready to accept electrons, while NADH is the reduced form, carrying electrons to the electron transport chain.

Understand the importance of NAD+ in energy harvesting. NAD+ is crucial for capturing energy from glucose molecules, as it facilitates the transfer of electrons in a series of gradual steps, ultimately leading to ATP production.