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

Krebs Cycle

Anatomy & Physiology

3. Energy & Cell Processes

Krebs Cycle

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Multiple Choice

Which products of the Krebs Cycle are utilized in the electron transport chain?

NADH and FADH2

CO2 and H2O

ATP and GTP

Acetyl-CoA and oxaloacetate

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Verified step by step guidance

Understand the role of the Krebs Cycle in cellular respiration: The Krebs Cycle, also known as the Citric Acid Cycle, is a series of chemical reactions used by all aerobic organisms to generate energy through the oxidation of acetyl-CoA derived from carbohydrates, fats, and proteins into carbon dioxide and chemical energy in the form of ATP.

Identify the main products of the Krebs Cycle: The primary products of the Krebs Cycle include NADH, FADH2, ATP (or GTP), and CO2. These products are generated through a series of enzymatic reactions that occur in the mitochondrial matrix.

Recognize the role of NADH and FADH2: Both NADH and FADH2 are electron carriers that store energy used to produce ATP in the electron transport chain. They are crucial for transferring electrons to the electron transport chain located in the inner mitochondrial membrane.

Connect the Krebs Cycle to the Electron Transport Chain: The electrons carried by NADH and FADH2 are transferred to the electron transport chain, where they pass through a series of proteins and ultimately reduce oxygen to form water. This process generates a proton gradient that drives the synthesis of ATP.

Conclude which products are utilized in the electron transport chain: Based on the roles of the products, NADH and FADH2 are the key molecules from the Krebs Cycle that are utilized in the electron transport chain to facilitate ATP production.