Bacteria Morphology
The next to last step in peptidoglycan biosynthesis is

cross-linking the peptide side chains of peptidoglycan
linking the sugar of the disaccharide-peptide unit to the growing peptidoglycan chain
synthesis of the NAM-peptide subunit
removal of the subunit from bactoprenol

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Bacteria Morphology
Flagella move the cell by

an individual flagellum beating in a whip-like motion
many flagella beating in a synchronous, whip-like motion
spinning like a propeller
attaching to nearby particles and contracting

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Bacteria Morphology
Which of the following is not true about peptidoglycan?

None of these
It occurs in the form of a bag shaped macro molecule surrounding the cytoplasm membrane
It is present in prokaryotic cell wall
It is a polymer consisting of N-acetyl glucosamine, N-acetyl muramic acid and amino acids (alanine, lysine, etc.)

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