Logged out
Access All our Essays in an Instant
Swap your work for FREE access, or pay £4.99 for instant access
Investigating the permeability of plant cells.
Member rating:
(21 votes)
| Words:
| Submitted: Thu Jul 11 2002
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:
Muddeha Waraich U.6.5. Investigating the permeability of plant cells. Abstract. This investigation has set out to look at how the permeability of plant cells is affected by temperature changes between 250C and 850C. This was done using beetroot as the plant cell under investigation, and the use of a colorimeter. For this investigation it was necessary to carry out research into plant cell membranes and the transport mechanisms used by these membranes. Background Knowledge. The permeability of a plant cell is dependant on the membrane of the cell. Therefore factors affecting the cell membrane are factors that will affect the permeability of the cell. The Cell Membrane. The cell membrane is the boundary of the cell. They regulate the molecules that cross the boundary and are extremely thin, approximately 12 nm, but very strong and flexible. In 1972 Singer and Nicholson put forward the 'fluid mosaic model' of the cell, which is still held to be true. The...
To see the full version of this document, and 145,270 others
