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 Heart2h 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

Passive vs. Active Transport

Anatomy & Physiology

2. Cell Chemistry & Cell Components

Passive vs. Active Transport

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Multiple Choice

Which of the following statements about passive transport is correct?

Passive transport operates independently of diffusion.

Passive transport operates independently of the concentrations of the moving solute.

In passive transport, solute movement stops when the solute concentration is the same on both sides of the membrane.

Passive transport does not occur in the human body.

Passive transport permits the solute to move in either direction, but the net movement of solute molecules occurs down the concentration gradient of the molecule.

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Verified step by step guidance

Understand the concept of passive transport: Passive transport is a type of cellular transport where substances move across cell membranes without the need for energy input from the cell.

Recognize the role of concentration gradients: In passive transport, substances move from an area of higher concentration to an area of lower concentration, following the concentration gradient.

Identify the types of passive transport: Common types include diffusion, facilitated diffusion, and osmosis, all of which rely on concentration gradients.

Clarify the direction of solute movement: While solutes can technically move in either direction across the membrane, the net movement is always down the concentration gradient until equilibrium is reached.

Apply this understanding to the given statements: The correct statement is that passive transport permits solute movement in either direction, but the net movement is down the concentration gradient, aligning with the principles of diffusion.