BACTERIA MORPHOLOGY QUIZ

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

O-antigen of lipopolysaccharide (LPS)

Polysaccharide portion of lipoteichoic acid (LTA)

Electron transport system components

Braun lipoprotein

TRUE ANSWER : ?
YOUR ANSWER : ?

The cell walls of Gram positive bacteria contain two modified sugar, viz. N- acetylgucosamine (NAG) and N- acetylmuramic acid (NAM). They are covalently linked by

β- 1,4-glycosidic bond

β-1,6-glycosidic bond

α- 1,6-glycosidic bond

α- 1,4-glycosidic bond

TRUE ANSWER : ?
YOUR ANSWER : ?

Genetic system is located in the prokaryotes in

chromatin

nuclear material

nucleoid

all of these

TRUE ANSWER : ?
YOUR ANSWER : ?

Bacteria having no flagella are unable to

grow in nutrient agar

reproduce

move

stick to tissue surfaces

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is analogous to mesosomes of bacteria?

Golgi apparatus of eukaryotes

None of these

Lysosomes of eukaryotes

Mitochondria of eukaryotes

TRUE ANSWER : ?
YOUR ANSWER : ?

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

peroxidase

lipase

lysozyme

pectinase

TRUE ANSWER : ?
YOUR ANSWER : ?

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

None of these

Fungi

Gram-positive bacteria

Gram-negative bacteria

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following has Chinese letter arrangement?

Mycobacterium tuberculosis

Clostridium tetani

Bacillus anthracis

Corynebacterium diphtheriae

TRUE ANSWER : ?
YOUR ANSWER : ?

A single polar flagella is known as

amphitrichous

none of these

monotrichous

lophotrichous

TRUE ANSWER : ?
YOUR ANSWER : ?

The common word for bacteria which are spherical in shape is

cocci

pleomorphic

bacilli

spirilla

TRUE ANSWER : ?
YOUR ANSWER : ?

↑