Biochemistry “All enzymes are not proteins.” This statement is justified by: A All enzymes do not follow the Michaelis Menton hypothesis B RNAs act as ribozymes C Antibodies take pa in the catalysis of many reactions D Metals are involved in attachment to enzymes and catalysts 💡 Explanation "All enzymes are not proteins." This statement is justified by: ✓ Correct Answer: B. RNAs act as ribozymes