GCSE Biology – Exchange surfaces

Last updated: 30/06/2020
OCR Gateway GCSE Science – Biology foundation The challenge of size GCSE Biology – Exchange surfaces

Learning Objectives

-I can describe exchange surfaces in terms of surface area

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  1. What is the definition of a multicellular organism?

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  2. Describe the surface area to volume ratios of single-celled organism.

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  3. Describe the surface area to volume ratios of multicellular organism.

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  4. Which of the following have a large surface area?

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  5. Which of the following have a large surface area?

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  6. Which of the following have a large surface area?

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  7. Where is the alveoli used in the body?

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  8. Where is the alveoli used in the body?

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