What allows a bacteria to stain positively with gram stain?
Correct answer: D. The bacteria's thick peptidoglycan cell walls
- A. The bacteria is anaerobic
- B. The bacterial sample was pretreated with 3% ethanol
- C. The bacteria's periplasmic space
- D. The bacteria's thick peptidoglycan cell walls
Explanation
Gram-positive bacteria have a thick layer of peptidoglycan in their cell walls, which allows them to take up the crystal violet colour of the Gram stain.
Last updated
Related questions
A bacillus bacterium with a single flagellum at one end is described as:
A bacteria without flagella is called:
A bacterial cell envelope of mollicutes does not include?
A bacterial cell, having plasma membrane with all things present within it is called:
A bacterium divides every 36 minutes. If a culture containing 105 cells/ml is grown for 180 minutes, what will be cell concentration after that period?