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

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

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Bacteria Morphology
The cell wall of

gram-positive bacteria are thicker than gram-negative bacteria
both have same thickness but composition is different
gram-negative bacteria are thicker than gram-positive bacteria
none of these

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Bacteria Morphology
Flagella move the cell by

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

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