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Bacteria Morphology

Bacteria Morphology
Chemically the capsule may be

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

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

Diplococci
Streptococci
Tetracocci
None of these

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

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

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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

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

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Bacteria Morphology
Name the component of flagellum.

Hook
Basal body
Filament
All of these

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Bacteria Morphology
Single or clusters of flagella at both poles is known as

monotrichous
none of these
amphitrichous
petritrichous

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