Logged out
Access All our Essays in an Instant
Swap your work for FREE access, or pay £4.99 for instant access
An Investigation into the effects of varying Concentrations of Sucrose solution on Plant tissue.
Member rating: No Rating | Words: | Submitted: Tue Sep 23 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:
An Investigation into the effects of varying Concentrations of Sucrose solution on Plant tissue Planning INTRODUCTION: This experiment is going to help us to understand how different concentrations of sucrose solutions (20%, 15%, 10%, 5%, and 0%) affect the rate of osmosis in plant tissue. Osmosis is the passage of water across a partially permeable membrane from a dilute to a more concentrated solution. When a substance, such as sucrose, dissolves in water ,the sucrose molecules attract water molecules and combine with them. The water molecules now combined with sucrose molecules are no longer free to move and so the effective concentration of free water molecules in the solution has been reduced. The more sucrose molecules there are in the solution, the more water molecules have been 'tied up'. In other words, the more concentrated a solution is, the less free water molecules it will contain. The diagram (over) represents a dilute sucrose solution...
To see the full version of this document, and 145,345 others
