Cell Transport
Diffusion, osmosis, active transport, factors affecting transport, surface area to volume ratio, and practical investigations
What you'll cover
- Diffusion definition and examples
- Osmosis and water movement
- Active transport using ATP
- Factors affecting transport rate (concentration gradient, temperature, surface area, distance)
- Surface area to volume ratio calculations
- Multicellular organisms and exchange surfaces
- Root hair cell adaptations
- Alveoli gas exchange adaptations
- Concentration gradients and equilibrium
- Real-world transport examples (kidneys, lungs, small intestine)
Study this topic
The Cell's Transport System
The Three Types of Cell Transport
Factors Affecting Transport Rate
Concentration Gradients and Equilibrium
Real-World Applications of Cell Transport
Required Practical: Investigating Osmosis
Cell Transport Overview Diagram
Understanding Concentration Terms
Why Does Active Transport Require Energy?
Diffusion vs Osmosis vs Active Transport: Side-by-Side
Key Terms: Cell Transport
Surface Area to Volume Ratio
Worked Example: Percentage Change in Mass (Osmosis Practical)
Common Misconceptions About Cell Transport
Memory Aid: DOA
How This Topic Appears in Exams
Exam Success Tips
Topic Summary: Cell Transport
Sample Flashcards
Sample Questions
Which statement best describes diffusion?
Explain how osmosis causes a plant cell to become plasmolysed when placed in a concentrated sugar solution.
18
exam-style questions
20
revision flashcards
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