Rate of reaction

The first 200 words of this essay...

Investigation to see the effects of temperature on the breakdown of hydrogen peroxide by catalase

Aim

The aim of this investigation is to find out the effect of temperature change on the rate of enzyme activity. The enzyme that I will use will be catalase and will measure the rate at which it breaks down hydrogen peroxide at different temperatures.

2 H2O2 2 H2O + O2

This reaction emits oxygen what I will use to measure the rate of reaction with the rate of oxygen emitted

Background information (for better understanding therefore better investigation)

Enzymes-

All enzymes are biological catalysts; they lower the activation energy needed for a reaction to start, therefore increasing the rate of enzyme to substrate collisions that have the activation energy needed to start the reaction, more successful collision meaning a higher rate of reaction. Without enzymes chemical reactions would occur too slowly to support life as we know it.

This graph shows how enzymes lower the activation energy needed to start a reaction and therefore speedup the reaction because more successful collisions take place.

Enzymes work by attaching themselves to their