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

Electron Transport Chain

Anatomy & Physiology

3. Energy & Cell Processes

Electron Transport Chain

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Multiple Choice

Each membrane protein complex in the electron transport chain functions as which of the following?

An electron carrier

A lipid transporter

A nucleic acid polymerase

A carbohydrate synthesizer

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Verified step by step guidance

Understand the role of the electron transport chain (ETC) in cellular respiration. The ETC is a series of protein complexes located in the inner mitochondrial membrane that facilitates the transfer of electrons from electron donors to electron acceptors via redox reactions.

Recognize that the primary function of the ETC is to create a proton gradient across the mitochondrial membrane, which is used to produce ATP through oxidative phosphorylation.

Identify the components of the ETC, which include complexes I, II, III, and IV, as well as mobile electron carriers like ubiquinone (coenzyme Q) and cytochrome c.

Each membrane protein complex in the ETC acts as an electron carrier, transferring electrons from one complex to the next, ultimately leading to the reduction of oxygen to water.

Eliminate the incorrect options by understanding that lipid transporters, nucleic acid polymerases, and carbohydrate synthesizers do not play a role in the electron transport chain's function of electron transfer and ATP production.