BACTERIA MORPHOLOGY QUIZ

Peptidoglycan accounts for __________ of the dry weight of cell wall in many gram positive bacteria

11%+ 0.22%

50% or more

About 20%

About 10%

TRUE ANSWER : ?
YOUR ANSWER : ?

In eukaryotic cells, ribosomes are

80S

70S

Not specific

60S

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following has Chinese letter arrangement?

Mycobacterium tuberculosis

Bacillus anthracis

Corynebacterium diphtheriae

Clostridium tetani

TRUE ANSWER : ?
YOUR ANSWER : ?

Gram positive cells have a

second outer membrane that helps to retain the crystal violet stain

multiple layer of peptidoglycan 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 : ?

Flagella move the cell by

attaching to nearby particles and contracting

an individual flagellum beating in a whip-like motion

many flagella beating in a synchronous, whip-like motion

spinning like a propeller

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is analogous to mesosomes of bacteria?

Lysosomes of eukaryotes

Mitochondria of eukaryotes

Golgi apparatus of eukaryotes

None of these

TRUE ANSWER : ?
YOUR ANSWER : ?

The cell wall of

both have same thickness but composition is different

gram-positive bacteria are thicker than gram-negative bacteria

none of these

gram-negative bacteria are thicker than gram-positive bacteria

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following bacteria lack a cell wall and are therefore resistant to penicillin?

Mycoplasmas

Spirochetes

Bdellovibrios

Cyanobacteria

TRUE ANSWER : ?
YOUR ANSWER : ?

Microcapsules are composed of

polysaccharides

proteins

all of these

lipids

TRUE ANSWER : ?
YOUR ANSWER : ?

The common word for bacteria which are spherical in shape is

pleomorphic

cocci

bacilli

spirilla

TRUE ANSWER : ?
YOUR ANSWER : ?