BACTERIA MORPHOLOGY QUIZ

Microcapsules are composed of

lipids

all of these

polysaccharides

proteins

TRUE ANSWER : ?
YOUR ANSWER : ?

In eukaryotic cells, ribosomes are

60S

80S

70S

Not specific

TRUE ANSWER : ?
YOUR ANSWER : ?

The cocci which forms a chain is

diplococci

Streptococci

Staphylococci

Tetracocci

TRUE ANSWER : ?
YOUR ANSWER : ?

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- 1,4-glycosidic bond

α- 1,4-glycosidic bond

β-1,6-glycosidic bond

TRUE ANSWER : ?
YOUR ANSWER : ?

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

pleomorphic

cooci

bacilli

spirilla

TRUE ANSWER : ?
YOUR ANSWER : ?

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

About 10%

11%+ 0.22%

50% or more

About 20%

TRUE ANSWER : ?
YOUR ANSWER : ?

Cytoplasmic inclusions include

fat globules

ribosomes

all of these

mesosomes

TRUE ANSWER : ?
YOUR ANSWER : ?

Chemotaxis is a phenomenon of

swimming away or towards of bacteria in presence of chemical compound

swimming towards a bacteria

swimming away of bacteria

None of these

TRUE ANSWER : ?
YOUR ANSWER : ?

The last step in synthesis of peptidoglycan is

attaching two amino acids to form a cross-link

attachment of a peptide to muramic acid

binding of penicillin to a membrane protein

attachment of a portion of peptidoglycan to a membrane lipid

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following does not contain protein?

Porin

Flagellum

Lipoteichoic acid

Pili

TRUE ANSWER : ?
YOUR ANSWER : ?

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