Question Detail

MIC 121 CULTURE MEDIA Objective Question

Question

Which of the following fungal stains primarily stains the carbohydrates in fungal cell walls blue?
Options
A Periodic-acid Schiff stain (PAS stain)
B Lactophenol cotton blue
Correct Answer
C Grocott's methenamine silver stain
D Trypan blue
Correct Answer

Option B is the correct answer.

Detailed Explanation

Lactophenol cotton blue specifically stains the carbohydrates in fungal cell walls blue. PAS stain causes a magenta color, Grocott's colors cell walls brown to black, and Trypan blue stains fungal structures.

Hint

Think about the specific color produced by the stain for fungal cell walls.

Question Info