Exploring Microbial Classification: Gram Staining and Aerobic Traits Quiz

1. What type of bacteria are Gram + cocci?

Gram positive rods

Gram + cocci

Gram negative cocci

Gram negative rods

Gram positive cocci refers to bacteria that are spherical in shape and retain a purple color when subjected to a Gram stain test, indicating that they have a thick peptidoglycan cell wall. Gram negative rods, Gram positive rods, and Gram negative cocci are different types of bacteria with distinct cell wall structures and staining properties.

Explanation

Gram positive cocci refers to bacteria that are spherical in shape and retain a purple color when subjected to a Gram stain test, indicating that they have a thick peptidoglycan cell wall. Gram negative rods, Gram positive rods, and Gram negative cocci are different types of bacteria with distinct cell wall structures and staining properties.

2. What type of bacteria are Gram Neg Cocci?

Gram Neg Cocci

Gram Pos Bacilli

Gram Pos Cocci

Gram Neg Bacilli

Gram Neg Cocci are spherical bacteria that have a thin peptidoglycan layer and an outer membrane, which causes them to stain pink or red during the Gram staining process.

Explanation

Gram Neg Cocci are spherical bacteria that have a thin peptidoglycan layer and an outer membrane, which causes them to stain pink or red during the Gram staining process.

3. What type of bacteria are Gram positive bacilli?

Gram negative cocci

Gram negative bacilli

Gram positive cocci

Gram Pos bacilli

Gram positive bacilli refers to a type of bacteria that has a thick cell wall that retains the crystal violet stain during the Gram staining process. They appear purple under a microscope. Gram negative bacilli, Gram positive cocci, and Gram negative cocci are different types of bacteria with distinct characteristics.

Explanation

Gram positive bacilli refers to a type of bacteria that has a thick cell wall that retains the crystal violet stain during the Gram staining process. They appear purple under a microscope. Gram negative bacilli, Gram positive cocci, and Gram negative cocci are different types of bacteria with distinct characteristics.

4. What type of bacteria are Aerobic Gram Pos Cocci?

Aerobic Gram Neg Cocci

Anaerobic Gram Neg Cocci

Anaerobic Gram Pos Cocci

Aerobic Gram Pos Cocci

Aerobic Gram Pos Cocci are bacteria that are aerobic (require oxygen for growth), have a positive Gram stain (retains the color of the primary stain in the Gram stain test), and are spherical in shape.

Explanation

Aerobic Gram Pos Cocci are bacteria that are aerobic (require oxygen for growth), have a positive Gram stain (retains the color of the primary stain in the Gram stain test), and are spherical in shape.

5. Which type of bacteria are aerobic Gram negative bacilli?

Aerobic Gram positive cocci

Facultative anaerobic Gram positive bacilli

Anaerobic Gram negative bacilli

Aerobic Gram negative bacilli.

Aerobic Gram negative bacilli are a specific type of bacteria that require oxygen to grow and are characterized by their cell wall structure and staining properties.

Explanation

Aerobic Gram negative bacilli are a specific type of bacteria that require oxygen to grow and are characterized by their cell wall structure and staining properties.

6. What are Aerobic Gram negative coccobacilli (including obligate intracellular) known as?

Escherichia coli

Salmonella

Aerobic Gram negative coccobacilli (including obligate intracellular).

Streptococcus

Aerobic Gram negative coccobacilli including obligate intracellular bacteria are known as Rickettsia. Escherichia coli is a Gram-negative, facultatively anaerobic, rod-shaped, coliform bacterium. Streptococcus is a genus of gram-positive coccus (round) bacteria. Salmonella is a genus of rod-shaped (bacillus) Gram-negative bacteria.

Explanation

Aerobic Gram negative coccobacilli including obligate intracellular bacteria are known as Rickettsia. Escherichia coli is a Gram-negative, facultatively anaerobic, rod-shaped, coliform bacterium. Streptococcus is a genus of gram-positive coccus (round) bacteria. Salmonella is a genus of rod-shaped (bacillus) Gram-negative bacteria.