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Bacteria Morphology

Bacteria Morphology
Chemically the capsule may be

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

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

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Bacteria Morphology
Chemotaxis is a phenomenon of

swimming away of bacteria
swimming towards a bacteria
swimming away or towards of bacteria in presence of chemical compound
None of these

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

cocci
bacilli
spirilla
pleomorphic

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

Streptococci
Diplococci
None of these
Tetracocci

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Bacteria Morphology
Peptidoglycan accounts for __________ of the dry weight of cell wall in many gram positive bacteria

About 20%
About 10%
50% or more
11%+ 0.22%

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