B3.2.1 Transport systems in plants and animals-The blood system

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Substances are transported around the body by the circulatory sustem ( the heart, the blood vessels and the blood.) They are transported from where they are taken into the body to the cells, or from the cells to where they are removed from the body. Modern developments in biomedical and technological research enable us to help when the circulatory system is not working well. Plants have separate transport systems for water and nutrients.

The blood system

a) The circulatory system transports substances around the body 

b) The heart is an organ mainly comprised of muscle tissue which pumps blood around the body.

c) There are 4 main chambers of the heart:

  • Left ventricles
  • Right ventricles
  • Left atria
  • Right atria

d) Blood flows into the…

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