Why does a larger cell have a slower rate of diffusion compared to a smaller cell?

Larger cells have thicker membranes

Larger cells have a smaller surface area to volume ratio

Larger cells have more mitochondria

Larger cells have higher temperatures

How does temperature affect the rate of diffusion?

Higher temperatures slow down molecular movement

Lower temperatures increase molecular movement

Higher temperatures increase molecular movement

Temperature does not affect diffusion

What role does the cell membrane play in the process of diffusion?

It actively transports molecules across the membrane

It allows all molecules to pass freely

It acts as a semi-permeable barrier

Why do root hair cells have an increased surface area?

To decrease the rate of diffusion

To increase the rate of photosynthesis

To facilitate efficient absorption of water and minerals

Which of the following statements is true about diffusion in blood capillaries?

Capillaries have thick walls to slow diffusion

Capillaries have single-cell thick walls to optimize diffusion

Capillaries prevent diffusion entirely

Capillaries use active transport for diffusion

What happens when there is a greater concentration gradient across a membrane?

The concentration gradient disappears

The rate of diffusion increases

How does the size of molecules affect diffusion?

Larger molecules diffuse faster

Smaller molecules diffuse faster

Molecule size does not affect diffusion

Molecule size increases membrane permeability

In which scenario would diffusion be least effective?

High temperature and large concentration gradient

Small surface area to volume ratio

Thin membrane and low temperature

Large surface area to volume ratio

Diffusion Free MCQ Practice Test with Solutions

	Biology for GCSE/IGCSE 110 videos\|158 docs\|34 tests

	Biology for GCSE/IGCSE 110 videos\|158 docs\|34 tests

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