Bacteria Morphology
In which of the following, lipo-polysaccharide is a major constituent of outer membrane of the cellwall?

Fungi
Gram-positive bacteria
None of these
Gram-negative bacteria

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Bacteria Morphology
Flagella move the cell by

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

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