Fill in both "results" columns. Properly write all scientific names, where applicable. Of the organisms listed...

Fill in both "results" columns. Properly write all scientific names, where applicable. Of the organisms listed below, which ones have peptidoglycan in their cell walls? Which ones have lipopolysaccharides in their cell walls?

Organism	Gram Reaction	Result	Arrangement	Result	Morphology
Clostridium	+		Diplo		Bacilli
Enterobacter	-		Single		Bacilli
Lactobacillus	+		Strepto		Bacilli
Staphylococcus	+		Staphylo		Cocci
Streptococcus	+		Strepto		Cocci

Solutions

Expert Solution

Organism	Gram Reaction	Result	Arrangement	Result	Morphology
Clostridium	Positive	Cell wall contains peptidoglycan hence the primary stain crystal violet is trapped in the cell wall and hence purple color is retained.	Diplo	Purple stained, rod shaped bacteria occuring in pairs.	Bacilli
Enterobacter	Negative	Cell wall contains lipopolysaccharide which is washed away with the alcohol treatment which leads to the removal of the primary stain. The pink color of the cells is due to the counterstain.	Single	Pink stained, rod shaped bacteria.	Bacilli
Lactobacillus	Positive	Cell wall contains peptidoglycan hence the primary stain crystal violet is trapped in the cell wall and hence purple color is retained.	Sterpto	Purple stained, rod shaped bacteria occuring in chains.	Bacili
Staphylococcus	Positive	Cell wall contains peptidoglycan hence the primary stain crystal violet is trapped in the cell wall and hence purple color is retained.	Staphylo	Purple stained, spherical shaped bacteria occuring in clusters	Cocci
Streptococcus	Positive	Cell wall contains peptidoglycan hence the primary stain crystal violet is trapped in the cell wall and hence purple color is retained.	Strepto	Purple stained, spherical shaped bacteria occuring in chains.	Cocci

Rod shaped bacteria are named Bacilli

Spherical shaped bacteria are named Cocci

gladiator answered 1 year ago

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