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-negative bacteria

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

the interior portion of mitochondria

TRUE ANSWER : ?
YOUR ANSWER : ?

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

pleomorphic

cooci

spirilla

bacilli

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 structure(s) is /are external to cell wall?

Sheath

All of these

Flagella

Stalks

TRUE ANSWER : ?
YOUR ANSWER : ?

Single or clusters of flagella at both poles is known as

amphitrichous

petritrichous

none of these

monotrichous

TRUE ANSWER : ?
YOUR ANSWER : ?

Peptidoglycan is found only in the bacterial

glycocalyx

spore

cell membrane

cell wall

TRUE ANSWER : ?
YOUR ANSWER : ?

In eukaryotic cells, ribosomes are

60S

Not specific

80S

70S

TRUE ANSWER : ?
YOUR ANSWER : ?

Bacteria having no flagella are unable to

stick to tissue surfaces

grow in nutrient agar

reproduce

move

TRUE ANSWER : ?
YOUR ANSWER : ?

The next to last step in peptidoglycan biosynthesis is

cross-linking the peptide side chains of peptidoglycan

linking the sugar of the disaccharide-peptide unit to the growing peptidoglycan chain

synthesis of the NAM-peptide subunit

removal of the subunit from bactoprenol

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is analogous to mesosomes of bacteria?

Lysosomes of eukaryotes

Golgi apparatus of eukaryotes

Mitochondria of eukaryotes

None of these

TRUE ANSWER : ?
YOUR ANSWER : ?

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