1.10 Exchanging Materials (GCSE Biology)

The following is a GCSE Biology test covering '1.10 Exchanging Materials'

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Question 1

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Why is it easier for small organisms to exchange materials directly with their environment?

What is a disadvantage of a decreasing surface area to volume ratio in larger organisms?

What structure in fish increases the surface area for gas exchange?

What do plant roots mainly exchange with the environment?

Which adaptation improves the gas exchange efficiency in animals?

Which feature of the human small intestine aids nutrient absorption?

As organisms increase in size, their surface area to volume ratio:

How is a steep diffusion gradient maintained in animals?

A thin exchange surface is advantageous because it:

How do larger organisms overcome the problem of low surface area to volume ratio?

Which factor is very important for efficient exchange of materials between organisms and their environment?

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