Logged out
Access All our Essays in an Instant
Swap your work for FREE access, or pay £4.99 for instant access
Investigate concentration of amylase to see how fast it breaks down.
Member rating: No Rating | Words: | Submitted: Fri Feb 27 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:
INVESTIGATION Aim To investigate concentration of amylase to see how fast it breaks down. Scientific Knowledge An enzyme is a biological catalyst. A catalyst enables substances to react more quickly. Atoms break and form easily which are between bonds which are helped by catalysts. The particles need less energy, so the proceeds more quickly. For example, catalysts are now used in car exhaust systems. Car fumes contain poisonous carbon monoxide and nitrogen oxide. These pollutants react together very slowly to form, carbon dioxide and nitrogen which are not poisonous. Carbon monoxide + nitrogen oxide --> Carbon dioxide + Nitrogen 2Co + 2No --> 2Co2 + N2 When the exhaust's fumes pass over the platinum, the carbon monoxide and nitrogen oxide react together very rapidly. However, none of the platinum is used up during the reaction. The mass of platinum is the same after the reaction as before. The platinum has acted as catalyst. Therefore...
Get instant access
- Instant, unlimited access to our documents in full
- Swap your work for free access, or pay £4.99
- To see the full version of this document and 151,744 others
