BACTERIA MORPHOLOGY QUIZ

Cyanobacteria have

No cell wall

a gram-negative cell wall

Neither (a) nor (b)

a gram-positive cell wall

TRUE ANSWER : ?
YOUR ANSWER : ?

Flagella move the cell by

many flagella beating in a synchronous, whip-like motion

an individual flagellum beating in a whip-like motion

attaching to nearby particles and contracting

spinning like a propeller

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is true about cell wall of gram-positive bacteria?

It is thicker than that associated with gram-negative bacteria

It contains teichoic acids

All of these

It consists of multiple layers

TRUE ANSWER : ?
YOUR ANSWER : ?

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

Polysaccharide portion of lipoteichoic acid (LTA)

Braun lipoprotein

Electron transport system components

O-antigen of lipopolysaccharide (LPS)

TRUE ANSWER : ?
YOUR ANSWER : ?

Peptidoglycan is found only in the bacterial

spore

cell membrane

glycocalyx

cell wall

TRUE ANSWER : ?
YOUR ANSWER : ?

Peptidoglycan is also known as

mesodiaminopimetic acid

murein mucopeptide

N acetylglucosamine

N-acetyl muramic acid

TRUE ANSWER : ?
YOUR ANSWER : ?

The cocci which forms a chain is

Tetracocci

Streptococci

Staphylococci

diplococci

TRUE ANSWER : ?
YOUR ANSWER : ?

A single polar flagella is known as

amphitrichous

lophotrichous

none of these

monotrichous

TRUE ANSWER : ?
YOUR ANSWER : ?

Microcapsules are composed of

polysaccharides

lipids

all of these

proteins

TRUE ANSWER : ?
YOUR ANSWER : ?

Teichoic acids are typically found in

cell walls of gram positive bacteria

cell walls of gram negative bacteria

outer membranes of gram negative bacteria

outer membranes of gram positive bacteria

TRUE ANSWER : ?
YOUR ANSWER : ?