Logged out
Access All our Essays in an Instant
Swap your work for FREE access, or pay £4.99 for instant access
Investigate the effect of concentration of the catalase enzyme in celery.
Member rating: No Rating | Words: | Submitted: Mon Feb 23 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:
Theory The majority of the reactions that occur in living organisms are enzyme controlled. Without them, the rate of reactions would be slow as to cause serious, if not fatal, damage. Enzymes are biological catalysts. They are large protein molecules. Due to their specific shape, they react specifically when they catalyse. One enzyme will react with the molecule of one substrate. The site of the reaction occurs in an area on the surface of the protein called the active site. Since the active site for all molecules of one enzyme will be made up of the same arrangement of amino acids, it has a highly specific shape. This means that there is only one active site on each enzyme molecule and only a specific substrate will fit into it. Activation energy: When the reactions happen, the products have less energy than the substrates. However, most substrates require more energy to get the...
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 146,186 others
Receive email updates for this category
- Simply tell us your email address and receive a weekly Study Help Email for FREE
- Receive 3 FREE essay views with each email
- Get all the latest essays from Coursework.Info & discussion from TheStudentRoom.co.uk
