Question

select all that apply

which of the following are classes of enzymes?

• activases
• isomerases
• transferases
• hydroprotases
• lyases

Explanation:

Identify official enzyme classes

The International Union of Biochemistry and Molecular Biology (IUBMB) classifies enzymes into seven major classes:

1. Oxidoreductases
2. Transferases
3. Hydrolases
4. Lyases
5. Isomerases
6. Ligases
7. Translocases

Evaluate the given options

• Activases: Not a recognized class of enzymes.
• Isomerases: Valid major class (Class 5).
• Transferases: Valid major class (Class 2).
• Hydroprotases: Not a recognized class of enzymes (likely a distractor combining hydrolase and protease).
• Lyases: Valid major class (Class 4).

Answer:

• Activases
• Isomerases (Correct answer)
• Transferases (Correct answer)
• Hydroprotases
• Lyases (Correct answer)