Logged out
Access All our Essays in an Instant
Swap your work for FREE access, or pay £4.99 for instant access
By what process can materials move in and out of cells and how are these movements regulated?
Member rating:
(2 votes)
| Words:
| Submitted: Thu Aug 28 2003
Page Preview
On the left is an image preview of every page of this document, and below are the first 150 words with formatting removed:
Q: By what process can materials move in and out of cells and how are these movements regulated? The human body is made of many different cells, each of these cells have different structures and carry out different functions to make the body work properly. So from this you can make the assumption that because the cells have different functions and structures the way that materials pass through the cell surface membrane are different to suit each process and cell. My task is to investigate the ways that cells use, to move materials in and out of the cell surface membrane and look into ways that this movement can take place. The surface of the membrane is designed to allow the passing of materials as it is partially permeable, this means that in the membrane there are pores, which allow smaller molecules through, but not the larger more solute molecules....
To see the full version of this document, and 145,348 others
