BACTERIA MORPHOLOGY QUIZ

The cocci which forms a bunch and irregular pattern are

Staphylococci

Tetracocci

Streptococci

diplococci

TRUE ANSWER : ?
YOUR ANSWER : ?

The other name for peptidoglycan is

murein

both (a) & (b)

mucopeptide

none of these

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is not true about peptidoglycan?

It is a polymer consisting of N-acetyl glucosamine, N-acetyl muramic acid and amino acids (alanine, lysine, etc.)

It occurs in the form of a bag shaped macro molecule surrounding the cytoplasm membrane

It is present in prokaryotic cell wall

None of these

TRUE ANSWER : ?
YOUR ANSWER : ?

Periplasm is

the interior portion of mitochondria

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 area outside the cell membrane that is influenced by the polymers

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 : ?

Which is most likely to be exposed on the surface of a gram-negative bacterium?

Protein involved in energy generation

Phospholipids

Lipoteichoic acid

Pore protein (porin)

TRUE ANSWER : ?
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A cluster of polar flagella is called

petritrichous

lophotrichous

amphitrichous

monotrichous

TRUE ANSWER : ?
YOUR ANSWER : ?

Peptidoglycan is found only in the bacterial

glycocalyx

cell membrane

spore

cell wall

TRUE ANSWER : ?
YOUR ANSWER : ?

The cell walls of many gram positive bacteria can be easily destroyed by the enzyme known as

peroxidase

lysozyme

pectinase

lipase

TRUE ANSWER : ?
YOUR ANSWER : ?

The location where the bacterial chromosome concentrates is called

nuclein

nucleus

nucleoid

nucleose

TRUE ANSWER : ?
YOUR ANSWER : ?