Question

1. A Catalyst speeds up/slows down a chemical reaction.

2. An enzyme is a protein/fat/carbohydrate.

3. An enzyme is a catalyst for many chemical reactions that take place in cells. True/False?

4. Enzymes work by lowering the activation energy needed to start chemical reactions. What is the "activation energy?'

5. Lowering the activation energy speeds up/slows down the rate of chemical reactions

6. Enzymes can speed up one/many chemical reaction(s).

7. The reactions of an enzyme-catalyzed reaction are called.

8. What is the "active-site" on any enzyme?

Answer 1

1.A Catalyst speeds up a chemical reaction.
2.An enzyme is a protein.
3.True.
4.Activation energy is the minimum amount of energy required for a chemical reaction to occur.
5.Lowering the activation energy speeds up the rate of chemical reactions.
6.Enzymes can speed up many chemical reactions.
7.The reactions of an enzyme-catalyzed reaction are called the enzymatic reaction.
8.The active site on an enzyme is a specific region on the enzyme where the substrate binds and the chemical reaction occurs. It is a pocket or cleft on the surface of the enzyme where the substrate fits like a key into a lock.

Answer 2

1. speeds up

2. protein

3. True

4. True

5. speeds up

6. many

Step-by-step explanation:

Activation energy is the energy needed to put into a chemical process before the process can actually begin. Basically it's like investing some energy into doing in order to get the results of the actual process you want.

By lowering the activation energy with an enzyme, you are essentially using less energy to power your chemical reaction.

The lower the activation energy, the faster rate for the reaction.

The "active-site" on any enzyme is the site in which a substrate or any other protein binds to during a reaction. When they bind, it is called the enzyme-substrate complex.