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

2. Cell Chemistry & Cell Components

Active Transport

Anatomy & Physiology

2. Cell Chemistry & Cell Components

Active Transport

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Multiple Choice

Which of the following defines the type of transport by the sodium-potassium pump?

Active transport through a symporter.

Passive transport through a symporter.

Active transport through an antiporter.

Passive transport through an antiporter.

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Verified step by step guidance

Understand the concept of active transport: Active transport is the movement of molecules across a cell membrane from a region of lower concentration to a region of higher concentration, using energy in the form of ATP.

Identify the role of the sodium-potassium pump: The sodium-potassium pump is a type of active transport mechanism that moves sodium ions out of the cell and potassium ions into the cell against their concentration gradients.

Define the term 'antiporter': An antiporter is a type of transporter that moves two or more different ions or molecules in opposite directions across a membrane.

Recognize the function of the sodium-potassium pump as an antiporter: The sodium-potassium pump exchanges three sodium ions (Na⁺) out of the cell for two potassium ions (K⁺) into the cell, which is characteristic of an antiporter.

Conclude that the sodium-potassium pump is an example of active transport through an antiporter, as it requires energy to move ions against their concentration gradients in opposite directions.