Bacteria Morphology
The last step in synthesis of peptidoglycan is

binding of penicillin to a membrane protein
attachment of a portion of peptidoglycan to a membrane lipid
attaching two amino acids to form a cross-link
attachment of a peptide to muramic acid

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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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