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Bacteria Morphology

Bacteria Morphology
The cocci which forms a bunch and irregular pattern are

diplococci
Tetracocci
Staphylococci
Streptococci

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

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

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Bacteria Morphology
The cell walls of many gram positive bacteria can be easily destroyed by the enzyme known as

pectinase
lysozyme
lipase
peroxidase

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Bacteria Morphology
Which of the following bacteria lack a cell wall and are therefore resistant to penicillin?

Cyanobacteria
Mycoplasmas
Bdellovibrios
Spirochetes

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Bacteria Morphology
The common word for bacteria which are helically curved rods is

cooci
pleomorphic
spirilla
bacillus

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

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