Question

enicillins act on an important bacterial enzyme called transpeptidase. What role does this enzyme play? ut of Select one: juestion O It acylates amino acid residues in the bacterial cell wall. O b. It catalyses the final crosslinking stage in cell wall synthesis. O It racemises L-alanine to D-alanine prior to its incorporation into the bacterial cell wall. O d. It catalyses the transport of the building blocks for cell wall synthesis across the cell membrane.

Answer 1

The correct answer is:

b. It catalyses the final crosslinking stage in cell wall synthesis.

Transpeptidase, also known as penicillin-binding protein (PBP), is an important bacterial enzyme that plays a crucial role in cell wall synthesis. It catalyzes the final crosslinking (peptide bond formation) between the amino acid residues in the peptidoglycan layer of the bacterial cell wall. This crosslinking is essential for the structural integrity and strength of the cell wall.