The Gram stain technique is valuable in distinguishing Bacteria from viruses whether or not a bacterium has pili. The flagella of a motile cell different types of bacteria based on cell envelope structure.

a. True

b. False

False

Explanation:

Gram stain technique is a method use to classify bacteria into large groups base on their different cell wall components. It differentiate gram positive and gram negative by coloring them with red or Violet colors.

Gram stain is use for identification and classification of bacteria.

Gram positive stain violet due to presence of thick layers of peptidoglylcan in their cell walls and gram negative stain red due to thin layers of peptidoglylcan in their cell walls.