• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

Investigating The Rate Of Enzyme Activity With Varying Enzyme Concentration.

Page
  1. 1
    1
  2. 2
    2
  3. 3
    3
  4. 4
    4
  5. 5
    5
  6. 6
    6
  7. 7
    7
  • Essay length: 2151 words
  • Submitted: 11/07/2002
Share this essay:
AS and A Level Molecules & Cells

The first 200 words of this essay...

Investigating The Rate Of Enzyme Activity With Varying Enzyme Concentration.

Introduction.

In this experiment I hope to find out the effects of enzyme concentration on the rate of enzyme activity. I will do this by watching the varying levels of reactivity whilst experimenting with liver (which contains catalase) and hydrogen peroxide that will react to give off oxygen.

Enzymes are biological catalysts that work according to the lock and key hypothesis. Enzymes contain an active site where the reaction of the two substrates takes place; the shape of this active site determines how effective the enzyme is. The higher the temperature the more collisions between the enzyme and substrates so the more reactions can take place. If the enzyme becomes too hot it will become denatured and the active site will be mutated and ineffective. Also, pH has an effect on the effectiveness of an enzyme. An enzyme needs to be in the right environment (pH) or it again becomes denatured and useless.

Before I carried out the final experiment I did preliminary work in which I tried various ways of measuring the oxygen given off from the reaction. The first problem I

Read more
The above preview is unformatted text

Found what you're looking for?

  • Start learning 29% faster today
  • Over 150,000 essays available
  • Just £6.99 a month

Marked by a teacher

This essay has been marked by one of our great teachers. You can read the full teachers notes when you download the essay.

Peer reviewed

This essay has been reviewed by one of our specialist student essay reviewing squad. Read the full review on the essay page.

Peer reviewed

This essay has been reviewed by one of our specialist student essay reviewing squad. Read the full review under the essay preview on this page.