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

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Bacteria Morphology
Cytoplasmic inclusions include

fat globules
mesosomes
all of these
ribosomes

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Bacteria Morphology
Which of the following has peptidoglycan as a major constituent of cell wall?

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

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Bacteria Morphology
The last step in synthesis of peptidoglycan is

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

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Bacteria Morphology
Which of the following structure(s) is /are external to cell wall?

Flagella
Stalks
All of these
Sheath

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