BACTERIA MORPHOLOGY QUIZ

Periplasm is

the area outside the cell membrane that is influenced by the polymers

the area between the inner and outer membranes of Gram-positive bacteria

the area between the inner and outer membranes of gram-negative bacteria

the interior portion of mitochondria

TRUE ANSWER : ?
YOUR ANSWER : ?

The protein from which hook and filaments of flagella are composed of, is

gelatin

flagellin

casein

keratin

TRUE ANSWER : ?
YOUR ANSWER : ?

A single polar flagella is known as

none of these

amphitrichous

monotrichous

lophotrichous

TRUE ANSWER : ?
YOUR ANSWER : ?

Cyanobacteria have

No cell wall

a gram-negative cell wall

Neither (a) nor (b)

a gram-positive cell wall

TRUE ANSWER : ?
YOUR ANSWER : ?

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

Gram-positive bacteria

Fungi

None of these

Gram-negative bacteria

TRUE ANSWER : ?
YOUR ANSWER : ?

The location where the bacterial chromosome concentrates is called

nuclein

nucleose

nucleus

nucleoid

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The last step in synthesis of peptidoglycan is

attaching two amino acids to form a cross-link

attachment of a portion of peptidoglycan to a membrane lipid

attachment of a peptide to muramic acid

binding of penicillin to a membrane protein

TRUE ANSWER : ?
YOUR ANSWER : ?

In which of the following, lipo-polysaccharide is a major constituent of outer membrane of the cellwall?

Gram-positive bacteria

Fungi

Gram-negative bacteria

None of these

TRUE ANSWER : ?
YOUR ANSWER : ?

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

Electron transport system components

O-antigen of lipopolysaccharide (LPS)

Braun lipoprotein

Polysaccharide portion of lipoteichoic acid (LTA)

TRUE ANSWER : ?
YOUR ANSWER : ?

In eukaryotic cells, ribosomes are

80S

60S

70S

Not specific

TRUE ANSWER : ?
YOUR ANSWER : ?

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