Enzymes are biological catalyst.

• True

• False

All enzymes are protein.

• True

• False

All proteins are enzymes.

• True

• False

Regulation of enzymatic activities allows metabolism to adapt to rapidly changing conditions.

• True

• False

Active site is part of an enzyme where substrates bind and undergo chemical reaction.

• True

• False

Usually one enzyme acts only on one substrate.

• True

• False

Lock and key model able to explain well all the enzyme catabolic and anabolic activities.

• True

• False

Holoenzyme refers to the inactive form of enzyme.

• True

• False

Coenzyme defined as helper molecule that play an important role in enzyme-catalyzed reaction.

• True

• False

Zymogen or proenzyme is an active form of enzyme.

• True

• False