What are three statements that describe an enzyme?

Answer 1

1. It is not used up and does not change shape in a reaction.

2. It is used to speed up a reaction

3. Will only bind to another molecule as long as the enzyme substrate complex can form(see lock and key theory)

Answer 2

Enzymes are biological molecules that catalyze (i.e., increase the rates of) chemical reactions. In enzymatic reactions, the molecules at the beginning of the process, called substrates, are converted into different molecules, called products.

Almost all chemical reactions in a biological cell need enzymes in order to occur at rates sufficient for life. Since enzymes are selective for their substrates and speed up only a few reactions from among many possibilities, the set of enzymes made in a cell determines which metabolic pathways occur in that cell.

Enzymes are known to catalyze about 4,000 biochemical reactions.

Answer 3

Enzymes are special proteins that make chemical reactions take place in cells very, very quickly.

Answer 4

1. increase the rate of reaction

2. act specifically whith only one reactant to produse products

3. regulated from a state of low activity to high activity and vice versa

Answer 5

it is a protein. it is a catalyst- speeds up a chemical reaction without being used up in the reaction. each enzyme has a unique shape to carry out its function.

Answer 6

Enzymes affect the rate of chemical reactions.