Essential Biochemistry - Enzymes (Section 3 - No. 43)
Which of the following is a common feature of all enzymes?
They are all proteins.
They are all carbohydrates.
They all require cofactors.
They are all inhibited by competitive inhibitors.
הֶסבֵּר
Most enzymes are proteins, although some RNA molecules can also act as enzymes (ribozymes).