Logged out
Access All our Essays in an Instant
Swap your work for FREE access, or pay £4.99 for instant access
'Factors affecting the rate of respiration in immobilised yeast'.
Member rating: No Rating | Words: | Submitted: Wed Apr 07 2004
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:
Biology Coursework James Wyatt 'Factors affecting the rate of respiration in immobilised yeast' Variables The input variable that we will be investigating will be the temperature of the glucose solution that the yeast ball rises quickest in. This will be measured at regular intervals. The output variable is the time taken for the yeast balls to respire and rise to the top of the glucose solution. They will respire by the carbon dioxide from the solution entering the yeast balls, causing them to rise. The variables that will be controlled and kept the same are the volume of water, the amount of glucose, the concentration of the glucose and the size and mass of the beads. All of these will be controlled to keep a fair test. We will try and keep the beads the same size although it may be little tricky. Should this not be kept identically, it should not affect the...
To see the full version of this document, and 145,320 others
