BACTERIA MORPHOLOGY QUIZ

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

spirilla

pleomorphic

bacilli

cooci

TRUE ANSWER : ?
YOUR ANSWER : ?

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

Lipoteichoic acid

Protein involved in energy generation

Pore protein (porin)

Phospholipids

TRUE ANSWER : ?
YOUR ANSWER : ?

Chemically the capsule may be

either (a) or (b)

polypeptide

none of these

polysaccharide

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YOUR ANSWER : ?

Flagella move the cell by

an individual flagellum beating in a whip-like motion

spinning like a propeller

attaching to nearby particles and contracting

many flagella beating in a synchronous, whip-like motion

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YOUR ANSWER : ?

The cocci which forms a chain is

Staphylococci

diplococci

Tetracocci

Streptococci

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Which of the following may contain fimbriae?

Gram-negative bacteria

None of these

Both (a) and (b)

Gram-positive bacteria

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Which of the following has peptidoglycan as a major constituent of cell wall?

Gram-negative bacteria

Gram-positive bacteria

None of these

Fungi

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following does not contain protein?

Pili

Flagellum

Porin

Lipoteichoic acid

TRUE ANSWER : ?
YOUR ANSWER : ?

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

Mycoplasmas

Spirochetes

Cyanobacteria

Bdellovibrios

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YOUR ANSWER : ?

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

50% or more

11%+ 0.22%

About 20%

About 10%

TRUE ANSWER : ?
YOUR ANSWER : ?

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