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Exchange surfaces

OCR GCSE Biology A (J247) — Scaling up

What You Need to Know

Explain the necessity of exchange surfaces and transport systems in multicellular organisms based on surface area to volume ratio.
Calculate surface area, volume, and surface area:volume ratios.
Relate diffusion distances to the need for transport systems.

OCR GCSE Biology A (J247) — Scaling up

Explain the necessity of exchange surfaces and transport systems in multicellular organisms based on surface area to volume ratio.
Calculate surface area, volume, and surface area:volume ratios.
Relate diffusion distances to the need for transport systems.