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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

2. Cell Chemistry & Cell Components

Active Transport

Anatomy & Physiology

2. Cell Chemistry & Cell Components

Active Transport

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Multiple Choice

A sodium-potassium pump ________.

Transports 3 potassium ions out of a cell and 2 sodium ions into a cell and produces a molecule of ATP.

Transports 3 sodium ions out of a cell and 2 potassium ions into a cell using energy from ATP hydrolysis.

Transports 3 potassium ions out of a cell and 2 sodium ions into a cell using energy from ATP hydrolysis.

Transports 3 sodium ions out of a cell and 2 potassium ions into a cell and generates an ATP in each cycle.

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Verified step by step guidance

Understand the function of the sodium-potassium pump: It is a type of active transport mechanism that moves ions across the cell membrane against their concentration gradients.

Identify the ions involved: The sodium-potassium pump specifically transports sodium (Na⁺) and potassium (K⁺) ions.

Determine the direction of ion transport: The pump moves 3 sodium ions out of the cell and 2 potassium ions into the cell.

Recognize the energy source: The process requires energy, which is provided by the hydrolysis of ATP (adenosine triphosphate).

Clarify the role of ATP: ATP is not generated in this process; instead, it is consumed to provide the necessary energy for the active transport of ions.