Growth and Development (B3)

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  • Created by: caits
  • Created on: 22-03-14 11:43


Cell membrane - controls what is allowed in and out

Nucleus - contains DNA, controls the cell

Cytoplasm - where chemical reactions happen

Mitrochondria - where you make energy


Stem Cells;

We grow using stem cells. Stem cells originally can do anything. They divide by mitosis to become specialised to do one thing. A human grows in four stages:- Infancy (rapid growth), Childhood (steady growth), Adolescence (puberty causes rapid growth) and Adulthood (growth rate falls to zero). Humans and animals do not grow evenly - there is rapid growth at infancy and puberty but steady at other times. Bone marrow is a…


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