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

3. Energy & Cell Processes

Types of Phosphorylation

Anatomy & Physiology

3. Energy & Cell Processes

Types of Phosphorylation

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Problem 3

Textbook Question

The final electron acceptor of the electron transport chain that functions in aerobic oxidative phosphorylation isa. oxygen.b. water.c. NAD+.d. pyruvate.

Verified step by step guidance

Understand the context: The electron transport chain (ETC) is the final stage of cellular respiration, occurring in the inner mitochondrial membrane.

Recognize the role of the electron transport chain: It transfers electrons from electron donors to electron acceptors via redox reactions, and couples this electron transfer with the transfer of protons (H+ ions) across the membrane.

Identify the final electron acceptor: In aerobic respiration, the final electron acceptor is a molecule that receives electrons at the end of the ETC.

Consider the options: (a) oxygen, (b) water, (c) NAD+, (d) pyruvate.

Recall that in aerobic respiration, oxygen is the final electron acceptor, combining with electrons and protons to form water.

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Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Electron Transport Chain (ETC)

The electron transport chain is a series of protein complexes and other molecules located in the inner mitochondrial membrane. It plays a crucial role in aerobic respiration by transferring electrons from electron donors like NADH and FADH2 to electron acceptors, ultimately leading to the production of ATP through oxidative phosphorylation.

Aerobic Oxidative Phosphorylation

Aerobic oxidative phosphorylation is the process by which cells generate ATP using oxygen as the final electron acceptor in the electron transport chain. This process occurs in the mitochondria and involves the coupling of electron transport to ATP synthesis, making it essential for energy production in aerobic organisms.

Final Electron Acceptor

The final electron acceptor in the electron transport chain is the molecule that receives electrons at the end of the chain, allowing the process to continue. In aerobic respiration, this acceptor is oxygen, which combines with electrons and protons to form water, thus facilitating the production of ATP and maintaining the flow of electrons through the chain.