B5 Growth and Developement PAGE 2

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How does Light Affect plant Growth?

  • Plants grow towards the light - Phototropism. Increases chance of survival.

(http://3.bp.blogspot.com/-raRYkjaCCf0/TY_orpG2PxI/AAAAAAAAAAU/AzE-dRnu0IU/s1600/Coord10.14_phototropism.gif)

How does mitosis make new body cells?

A cell grows. During its growth it makes copies of:

  • Organelles (Specialised parts) including mitochondria
  • Chromosomes - Copied when two strands of each DNA molecule seperate and new strands form alongside them.

Mitosis…

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