Essential Biochemistry - Enzymes (Section 3 - No. 31)
What is a key characteristic of isoenzymes?
They have different active sites.
They catalyze the same reaction but differ in structure.
They are always found in the same tissue.
They are regulated by different factors.
Explanation
Isoenzymes are multiple forms of an enzyme that catalyze the same reaction but may differ in their amino acid sequence.