BACTERIA MORPHOLOGY QUIZ

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

O-antigen of lipopolysaccharide (LPS)

Electron transport system components

Braun lipoprotein

Polysaccharide portion of lipoteichoic acid (LTA)

TRUE ANSWER : ?
YOUR ANSWER : ?

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

All of these

Flagella

Sheath

Stalks

TRUE ANSWER : ?
YOUR ANSWER : ?

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

cooci

bacilli

spirilla

pleomorphic

TRUE ANSWER : ?
YOUR ANSWER : ?

Genetic system is located in the prokaryotes in

nucleoid

nuclear material

chromatin

all of these

TRUE ANSWER : ?
YOUR ANSWER : ?

Microcapsules are composed of

all of these

lipids

proteins

polysaccharides

TRUE ANSWER : ?
YOUR ANSWER : ?

In eukaryotic cells, ribosomes are

80S

Not specific

70S

60S

TRUE ANSWER : ?
YOUR ANSWER : ?

The cooci which mostly occur in single or pairs are

None of these

Tetracocci

Streptococci

Diplococci

TRUE ANSWER : ?
YOUR ANSWER : ?

The other name for peptidoglycan is

none of these

murein

mucopeptide

both (a) & (b)

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following does not contain protein?

Porin

Flagellum

Pili

Lipoteichoic acid

TRUE ANSWER : ?
YOUR ANSWER : ?

Chemotaxis is a phenomenon of

None of these

swimming away of bacteria

swimming towards a bacteria

swimming away or towards of bacteria in presence of chemical compound

TRUE ANSWER : ?
YOUR ANSWER : ?

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