Gram staining is a

Colour revealed by Gram positive bacteria after Gram staining is ……………

In Gram staining of bacteria, basic dye and mordant used are I. crystal violet II. iodine III. ethanol IV. ethanol-acetone solution

Among the statements given below find out which statement (s) is/are incorrect about Gram bacteria and select the appropriate code. I. The techinique of Gram staining was introduced by Hans Christian Gram in 1874. II. The basal body of flagellum of Gram positive bacteria has four rings of swellings. III. The lipid content in Gram positive bacteria cell wall is very low. IV. Escherichia coli and Salmonella are Gam negative bacteria.

Write the steps involved in Gram staining Bacteria.

In gram staining of bacteria, the basic dye and mordant, used are

Gram stain is used to differentiate Gram +ve and Gram -ve bacteria.

Consider the following statements about Gram staining. I. All bacteria whether Gram positive (+) or Gram negative (-) will stain bluish-purple when stained with crystal voilet. II. Gram negative bacteria appears pink on staining with safranin. III. Iodine in Gram staining acts as a mordant. IV. Alcohol treatment is required after Crystal Voilet lodine (CVI) complex. Choose the correct option.

In Gram staining technique the bacteria are stained with :