Quiz: The Role of Diffusion in Transport
Pearson Edexcel Level 3 Advanced GCE in Biology A (Salters-Nuffield) (9BN0)
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Building on what you've learned about why animals need a circulatory system, let's test your knowledge of diffusion and its role in transport!
What is diffusion?
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Which of the following are examples of diffusion in transport? (Select all that apply)
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Diffusion occurs because molecules move randomly and spread from areas of {{blank0}} concentration to areas of {{blank1}} concentration.
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Match the items on the left with their correct pairs on the right
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Calculate the rate of diffusion using Fick's Law: \frac{Rate}{Area} = \frac{Concentration Difference}{Distance}. If the concentration difference is 20 units, distance is 4 units, and area is 5 units, what is the rate?
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The rate of diffusion is affected by {{blank0}} size, the {{blank1}} difference, and the {{blank2}} distance.
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Match the items on the left with their correct pairs on the right
Which factor does NOT affect diffusion rate?
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Which properties of diffusion make it ideal for transport in small organisms? (Select all that apply)
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