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Bacteria Morphology

Bacteria Morphology
The common word for bacteria which are straight rod in shape is

pleomorphic
spirilla
cooci
bacilli

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Bacteria Morphology
Which is most likely to be exposed on the surface of a gram-negative bacterium?

Protein involved in energy generation
Lipoteichoic acid
Phospholipids
Pore protein (porin)

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Bacteria Morphology
The cooci which mostly occur in single or pairs are

Tetracocci
Streptococci
Diplococci
None of these

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Bacteria Morphology
Chemically the capsule may be

none of these
either (a) or (b)
polypeptide
polysaccharide

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Bacteria Morphology
The cell walls of Gram positive bacteria contain two modified sugar, viz. N- acetylgucosamine (NAG) and N- acetylmuramic acid (NAM). They are covalently linked by

α- 1,6-glycosidic bond
β-1,6-glycosidic bond
α- 1,4-glycosidic bond
β- 1,4-glycosidic bond

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Bacteria Morphology
Which of the following is exposed on the outer surface of a gram-negative bacterium?

Polysaccharide portion of lipoteichoic acid (LTA)
O-antigen of lipopolysaccharide (LPS)
Electron transport system components
Braun lipoprotein

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