Growth and Development (B3)

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

(http://www.bbc.co.uk/schools/gcsebitesize/science/images/aqaaddsci_06.gif)

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

(http://www.biologycorner.com/resources/bacteria7.jpg)

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…

Comments

No comments have yet been made

Similar Biology resources:

See all Biology resources »See all Cells, tissues and organs resources »