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

What waste product is generated during the Krebs Cycle?

NADH

Water (H2O)

ATP

Carbon dioxide (CO2)

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Verified step by step guidance

Understand the context: 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 acetate derived from carbohydrates, fats, and proteins into carbon dioxide.

Identify the main outputs of the Krebs Cycle: The cycle produces several key molecules, including ATP (adenosine triphosphate), NADH (nicotinamide adenine dinucleotide), FADH2 (flavin adenine dinucleotide), and carbon dioxide (CO2).

Focus on waste products: In the context of cellular respiration, a waste product is a byproduct that is not used by the cell for further energy production. In the Krebs Cycle, carbon dioxide (CO2) is released as a waste product.

Differentiate between energy carriers and waste: NADH and ATP are energy carriers that are used in subsequent steps of cellular respiration, such as the electron transport chain, to produce more ATP. Water (H2O) is not a direct product of the Krebs Cycle but is involved in other stages of cellular respiration.

Conclude with the correct identification: Based on the understanding of the Krebs Cycle, carbon dioxide (CO2) is the waste product generated during the cycle, as it is released and not used further in the energy production process.