Question

Gram positive bacteria?

remain violet after gram staining
are eubacteria
all of the above
have a thick peptidoglycan layer

Answer 1

All of the above statements are true for Gram-positive bacteria. Gram-positive bacteria retain the violet color after the Gram staining process, they belong to the domain Eubacteria, and they have a thick peptidoglycan layer in their cell wall.

Answer 2

all of the above

Step-by-step explanation:

The characteristics of Gram-positive bacteria:

• Gram-positive bacteria remain violet after Gram staining.
  This is because they have a thick peptidoglycan layer in their cell walls, which helps to protect them from the decolorizing agent.
• Gram-positive bacteria are eubacteria.
  This means that they are true bacteria, as opposed to archaea. Eubacteria are a type of prokaryotic organism that are characterized by having a single chromosome, a cell wall, and ribosomes.
• Gram-positive bacteria have a thick peptidoglycan layer.
  The peptidoglycan layer is a polymer of sugars and amino acids that is responsible for the structural integrity of the cell wall.
  The thick peptidoglycan layer in gram-positive bacteria helps to protect them from antibiotics and other environmental factors.

Therefore, the correct answer is all of the above.