Enzymes

Match the following.

1. cofactor 2. substrate 3. active site

In the figure illustrating the typical enzyme reaction, which is a substrate reactant?

A or B

An organism can live without enzymes.

False

If the reactants found in a cell are removed from the cell how will they behave chemically?

They may not be able to react

An enzyme may react with several substrate chemicals simultaneously.

True

Numerous different enzymes are produced by the cells.

True

An enzyme is:

a biological catalyst

Enzymes:

are produced at the direction and translation of DNA and RNA respectively

A substance which accelerates any chemical reaction but is not consumed by the reaction is called a _____.

catalyst

Often enzymes require a _____ in order for them to function as a catalyst.

cofactor

An enzyme is a large _____ molecule.

protein

The substance on which the enzyme acts is called the _____ chemical.

substrate

Why are enzymes necessary?

to act as a catalyst in chemical reactions.

(Select all that apply.) Choose enzyme cofactors mentioned in the lesson.

vitamins iron copper cobalt zinc calcium