BACTERIA MORPHOLOGY QUIZ

The cooci which mostly occur in single or pairs are

None of these

Tetracocci

Diplococci

Streptococci

TRUE ANSWER : ?
YOUR ANSWER : ?

Teichoic acids are typically found in

outer membranes of gram positive bacteria

cell walls of gram negative bacteria

cell walls of gram positive bacteria

outer membranes of gram negative bacteria

TRUE ANSWER : ?
YOUR ANSWER : ?

Name the component of flagellum.

Hook

All of these

Basal body

Filament

TRUE ANSWER : ?
YOUR ANSWER : ?

Bacteria having no flagella are unable to

stick to tissue surfaces

move

grow in nutrient agar

reproduce

TRUE ANSWER : ?
YOUR ANSWER : ?

Peptidoglycan is also known as

N acetylglucosamine

murein mucopeptide

N-acetyl muramic acid

mesodiaminopimetic acid

TRUE ANSWER : ?
YOUR ANSWER : ?

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

None of these

Gram-negative bacteria

Gram-positive bacteria

Fungi

TRUE ANSWER : ?
YOUR ANSWER : ?

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

bacilli

cooci

spirilla

pleomorphic

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)

O-antigen of lipopolysaccharide (LPS)

Braun lipoprotein

Electron transport system components

TRUE ANSWER : ?
YOUR ANSWER : ?

Gram positive cells have a

multiple layer of peptidoglycan that helps to retain the crystal violet stain

second outer membrane that helps to retain the crystal violet stain

thick capsule that traps the crystal violet stain

periplasmic space that traps the crystal violet

TRUE ANSWER : ?
YOUR ANSWER : ?

The structure responsible for motility of bacteria is

sheath

capsules

pilli

flagella

TRUE ANSWER : ?
YOUR ANSWER : ?

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