List three different factors which influence the rate of enzyme activity and specifically explain each factor’s influence on enzyme activity.
Since enzymes are protein, they are very sensitive to environmental conditions.
The very nature of large 3- dimensional structure of the protein makes it prone to change in temperature, pH, chemicals, and more.
The shape of the active site changes
are theses right now I just need to explain them!
"..and more". I suspect your teacher wants something more specific. You did not mention concentration, both of the enzyme, and substrate. Those factors are very dominate in influence.
I will be happy to critique your thinking on three of these factors.
http://www.google.com/search?hl=en&q=enzyme+ph+concentration+reaction&btnG=Google+Search