Dear NFL Commissioner,
We The Rough Riders personally invite you to our scrimmage that is very important for
you to attend. It will be June first where we will hold our scrimmage game. It will be used for
practice and for money. We would like you to atten
AP Biology - Enzyme Catalysis Investigation
Background: Enzymes are proteins that speed up the rate of a chemical reaction without being used up.
Enzymes are usually specific to particular substrates. The substrates in the reaction bind to active sites on