Active Transport

1
Active Transport

• Uses energy to get stuff across the Plasma
  membrane

2

• active transport uses energy to send substances
  against the direction they would travel by simple
  diffusion that is from a region of low
  concentration to a region of high concentration. 

3
Active transport is used to

• 1. Concentrate ions, minerals and nutrients
  inside the cell that are in low concentration
  outside. 
• 2. Keep unwanted ions or other molecules out of
  the cell that are able to diffuse through the
  cell membrane. 

4
This carrier protein uses ATP to move ions across
the PM
5
Visit the following websites to view animations
and learn more!

• http//www.bbc.co.uk/education/asguru/biology/01ce
  llbiology/05pathways/08active/index.shtml
• http//www.wisc-online.com/objects/index_tj.asp?ob
  jidAP11203
• http//staff.jccc.net/PDECELL/cells/activet.html