Enzyme Classification Practice Problems

Describe the reaction catalyzed by the enzyme alanine transaminase.

Name the enzyme that acts on proteins to break them down.

Consider the following reaction:

Identify the subclass of oxidoreductase enzyme that facilitates this reaction.

What is the substrate in the following reaction as written?

What is the product in the following reaction as written?

What type of reactions do enzymes known as hydrolases typically catalyze?

What type of reactions do enzymes named transferases typically catalyze?

Which enzyme would break down a protein molecule?

Which enzyme would break down a sucrose molecule into glucose and fructose?

Identify the enzyme that is responsible for breaking down the molecule maltose.

Which main class of enzyme would facilitate the reaction shown below?

What type of reaction is catalyzed by an enzyme known as a transaminase?

What kind of chemical process does decarboxylase facilitate?

Lactate dehydrogenase (LDH) is an enzyme that catalyzes the interconversion of pyruvate and lactate with concomitant interconversion of NADH and NAD⁺. What class does LDH belong to?

Determine which of the reactions is/are catalyzed by decarboxylase.

Which enzyme acts on the following molecule?

Cellulose

Identify the substrate and product and describe the chemical change in the dehydrogenase-catalyzed reaction involving acetaldehyde and ethanol.

To which enzyme main class does the enzyme involved in this reaction belong?

Bromelain, a protease enzyme found in pineapples, is often used to tenderize meat. Can you explain why bromelain serves as an effective meat tenderizer?

Consider the following reaction catalyzed by malate dehydrogenase that occurs in two steps:

To which class of enzymes does malate dehydrogenase belong?