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

Review of Aerobic Cellular Respiration

Anatomy & Physiology

3. Energy & Cell Processes

Review of Aerobic Cellular Respiration

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Multiple Choice

Through the first three stages of cellular respiration only 4 ATP molecules have been produced from the initial glucose molecule. In which of the products of these stages is the potential energy to produce more ATP molecules stored?
a) The 6 molecules of CO₂.
b) The H⁺ ions produced.
c) The 10 NADH and 2 FADH₂ molecules.
d) The 4 molecules of ATP.

The 6 molecules of CO₂.

The H⁺ ions produced.

The 10 NADH and 2 FADH₂ molecules.

The 4 molecules of ATP.

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Verified step by step guidance

Begin by understanding the process of cellular respiration, which consists of glycolysis, the citric acid cycle (Krebs cycle), and oxidative phosphorylation. Each stage plays a role in energy production.

Recognize that glycolysis and the citric acid cycle produce a small amount of ATP directly, but their main function is to generate electron carriers, specifically NADH and FADH2.

Identify that NADH and FADH2 are crucial because they carry high-energy electrons to the electron transport chain, where the majority of ATP is produced during oxidative phosphorylation.

Understand that the electron transport chain uses the electrons from NADH and FADH2 to pump H+ ions across the mitochondrial membrane, creating a gradient that drives ATP synthesis through chemiosmosis.

Conclude that the potential energy for producing more ATP is stored in the NADH and FADH2 molecules, as they are key to driving the electron transport chain and subsequent ATP production.