BACTERIA MORPHOLOGY QUIZ

The next to last step in peptidoglycan biosynthesis is

cross-linking the peptide side chains of peptidoglycan

synthesis of the NAM-peptide subunit

removal of the subunit from bactoprenol

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

TRUE ANSWER : ?
YOUR ANSWER : ?

The common word for bacteria which are helically curved rods is

cooci

pleomorphic

bacillus

spirilla

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

Protein involved in energy generation

Phospholipids

Pore protein (porin)

Lipoteichoic acid

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Bacteria having no flagella are unable to

move

stick to tissue surfaces

reproduce

grow in nutrient agar

TRUE ANSWER : ?
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The bacteria deficient in cell wall is

Staphylococcus

Klebsiella

Treponema

Mycoplasma

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

O-antigen of lipopolysaccharide (LPS)

Electron transport system components

Polysaccharide portion of lipoteichoic acid (LTA)

Braun lipoprotein

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Single or clusters of flagella at both poles is known as

petritrichous

none of these

amphitrichous

monotrichous

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Genetic system is located in the prokaryotes in

chromatin

all of these

nucleoid

nuclear material

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Which of the following is analogous to mesosomes of bacteria?

None of these

Mitochondria of eukaryotes

Lysosomes of eukaryotes

Golgi apparatus of eukaryotes

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A cluster of polar flagella is called

petritrichous

monotrichous

lophotrichous

amphitrichous

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