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

Which of the following is best associated with the electron transport chain?

Glycolysis

ATP synthesis

Citric acid cycle

Fermentation

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Verified step by step guidance

Understand the context: The electron transport chain (ETC) is a series of protein complexes located in the inner mitochondrial membrane. It plays a crucial role in cellular respiration by transferring electrons from electron donors to electron acceptors via redox reactions.

Identify the main function: The primary purpose of the electron transport chain is to create a proton gradient across the mitochondrial membrane, which is used to produce ATP through a process called oxidative phosphorylation.

Differentiate the processes: Glycolysis, the citric acid cycle, and fermentation are all parts of cellular respiration, but they occur in different locations and have different roles. Glycolysis occurs in the cytoplasm and breaks down glucose into pyruvate. The citric acid cycle occurs in the mitochondrial matrix and further processes pyruvate to produce electron carriers. Fermentation is an anaerobic process that allows glycolysis to continue in the absence of oxygen.

Connect the ETC to ATP synthesis: The electron transport chain is directly associated with ATP synthesis because it generates the proton gradient necessary for ATP synthase to convert ADP and inorganic phosphate into ATP.

Conclude the association: Given the options, ATP synthesis is the process most directly associated with the electron transport chain, as it is the final step where the energy from electrons is used to produce ATP.