Multiple choice Which of the following statements about enzyme DD-transpeptidase is true? It provides antigenicity to the cell wall. It makes the cell wall semi-permeable. It makes the cell wall strong and rigid. It breaks the amino acid linkages in the cell wall. Reveal answer Fill a bubble to check yourself C Correct answer Explanation DD-transpeptidase helps in cross linking between amino acids in different linear sugar amino chains. It results in a 3-dimensional structure that is strong and rigid.