Peptidoglycan is cross-linked between what constituents in gram-negative bacteria?

a. N-acetylglucosamine residues
b. N-acetylmuramic acid residues
c. phosphate groups
d. DAP and D-alanine amino acids


Answer: D

Biology & Microbiology

You might also like to view...

In response to LH and FSH, testes secrete ____

Fill in the blank with the appropriate word.

Biology & Microbiology

Which lineage includes members called lancelets?

a. Cephalochordata b. Placodermi c. Myxinoidea d. Urochordata

Biology & Microbiology

The fermentation pathway serves to recycle NADH back into NAD+.

a. true b. false

Biology & Microbiology

Which structure prevents blood flowing back into the atria during ventricular contractions?

A. foramen ovale B. semilunar valves C. atrioventricular valves D. carotid blood shunts E. sinoatrial node

Biology & Microbiology