Exchange Surfaces

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  • Created by: tiacoles
  • Created on: 15-02-16 21:01

Exchange of Substances with the Environment

  • Cells need to take in oxygen (for aerobic respiration) and nutrients (e.g. glucose). 
  • The need to excrete waste products like carbon dioxide and urea. 

Surface Areas: Volume Ratios

  • Smaller organisms have higher surface areas:volume ratios. 

Specialist Exchange Organs

Single-celled Organisms


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