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Questions and Answers
Gram (+) bacteria have a thick cell wall composed of low amounts of peptidoglycan.
Gram (+) bacteria have a thick cell wall composed of low amounts of peptidoglycan.
False
Safranin is used to colorize Gram (+) bacteria during the staining procedure.
Safranin is used to colorize Gram (+) bacteria during the staining procedure.
False
Alcohol causes dehydration of the peptidoglycan layer, preventing the CV-I complex from exiting the Gram (-) bacteria.
Alcohol causes dehydration of the peptidoglycan layer, preventing the CV-I complex from exiting the Gram (-) bacteria.
False
Both Gram (+) and Gram (-) bacteria are capable of forming endospores.
Both Gram (+) and Gram (-) bacteria are capable of forming endospores.
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Escherichia coli is classified as a Gram (+) bacteria and is oval-shaped.
Escherichia coli is classified as a Gram (+) bacteria and is oval-shaped.
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The mechanism of Gram staining involves the formation of a CV-I complex.
The mechanism of Gram staining involves the formation of a CV-I complex.
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Lipid content is high in Gram (-) bacteria compared to Gram (+) bacteria.
Lipid content is high in Gram (-) bacteria compared to Gram (+) bacteria.
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Sporulation allows bacteria to survive only under favorable environmental conditions.
Sporulation allows bacteria to survive only under favorable environmental conditions.
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Clostridium species are of concern in the food industry due to their ability to form spores.
Clostridium species are of concern in the food industry due to their ability to form spores.
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The purpose of fixation in the Gram staining procedure is to enhance the color of the smear.
The purpose of fixation in the Gram staining procedure is to enhance the color of the smear.
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Gram (+) bacteria have a high amount of peptidoglycan in their cell walls.
Gram (+) bacteria have a high amount of peptidoglycan in their cell walls.
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Safranin is primarily used to stain Gram (+) bacteria in the Gram staining procedure.
Safranin is primarily used to stain Gram (+) bacteria in the Gram staining procedure.
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The presence of lipopolysaccharides is a characteristic of Gram (-) bacteria.
The presence of lipopolysaccharides is a characteristic of Gram (-) bacteria.
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Endospores are known for their thick walls and resistance to harsh conditions.
Endospores are known for their thick walls and resistance to harsh conditions.
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Escherichia coli is a Gram (+) bacteria that is rod-shaped.
Escherichia coli is a Gram (+) bacteria that is rod-shaped.
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Alcohol causes the CV-I complex to remain in the cell wall of Gram (-) bacteria.
Alcohol causes the CV-I complex to remain in the cell wall of Gram (-) bacteria.
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The process of sporulation ensures that bacteria can remain dormant for extended periods in unfavorable conditions.
The process of sporulation ensures that bacteria can remain dormant for extended periods in unfavorable conditions.
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The Gram staining procedure includes a step where the smear is covered with iodine for one minute.
The Gram staining procedure includes a step where the smear is covered with iodine for one minute.
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Bacillus subtilis is characterized as a Gram (-) bacterium that forms clusters.
Bacillus subtilis is characterized as a Gram (-) bacterium that forms clusters.
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Both Gram (+) and Gram (-) bacteria can perform sporulation.
Both Gram (+) and Gram (-) bacteria can perform sporulation.
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