Describe the key features of an exchange surface

exchange surfaces require a small diffusion distance enabling the fast exchange of compounds, good blood supply to maintain a concentration gradient. This allows for the most efficient diffusion

ZS

Related Biology GCSE answers

All answers ▸

What is the difference between osmosis and active transport?


Explain the similarities and differences between plant and animal cells structure and shape (may include use of a diagram and bullet points are accepted).


Carbon Dioxide and water are needed for photosynthesis. Write a balanced symbol equation for photosynthesis.


Outline the processes involved in the generation of ATP through chemiosmosis (6 marks)