Enzymes

An enzyme is:

biological catalyst

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

catalyst

Numerous different enzymes are produced by the cells.

true

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

A or B

The region where the substrate molecule binds and reacts with the enzyme

active site

enzymes

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

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

cofactor

plays an important role in activating that enzyme

cofactor

An organism can live without enzymes.

false

An enzyme is a large molecule.

protein

Involved in a chemical reaction and is chemically changed by the reaction

substrate

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

substrate

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

they may not be able to react

Why are enzymes necessary?

to act as a catalyst in chemical reactions.

An enzyme may react with several substrate chemicals simultaneously.

true

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

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