Logged out
Access All our Essays in an Instant
Swap your work for FREE access, or pay £4.99 for instant access
Investigating if concentrations of catalase on a solution of hydrogen peroxide have any effect on the amount of oxygen evolved in the chemical reaction of hydrogen peroxide decomposing to become oxygen and water
Member rating: No Rating | Words: 1614 | Submitted: Wed Jan 09 2008
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:
GCSE Coursework Biology- 'Bubble Trouble' Planning Investigating if concentrations of catalase on a solution of hydrogen peroxide have any effect on the amount of oxygen evolved in the chemical reaction of hydrogen peroxide decomposing to become oxygen and water. The reaction is written: hydrogen peroxide --> Oxygen + Water H2O2 --> O2 + H2O Catalase catalyses this reaction and supposedly speeds it up by roughly 10000 times. I am going to keep the levels of hydrogen peroxide constant and vary the amount of catalase. List of apparatus 5 sets of 1mm thick potato discs containing the enzyme catalase. In the numbers 2,4,6,8 and 10 (3 lots of each, creating 15 lots of potato discs each set) 15 test tubes Hydrogen peroxide (vol.20) (5 ml in each test tube) pH9 Buffer Solution Water bath set to 40°C Detergent Stopwatch Razorblade Ruler Method Some cylinders of potato will be cut into 60 discs of 1mm thickness using a razorblade. Next I will take 15 test tubes and...
To see the full version of this document, and 145,345 others
