Question

Which of the following dye is used for staining cell organelle, mitochondria?

• A. Janus Green
• B. Saffranin
• C. Azzure B
• D. Crystal violet

Answer 1

Answer: (A)

Janus Green

A- Janus green is used to stain mitochondria. It acts as an indicator and changes color according to the amount of oxygen present.

B- Safranin is used to stain the nuclei and the lignified walls of cells.

C- Azzure B is a cationic dye, is used in the staining of blood films.

D - Crystal violet is used as a histological stain, particularly in Gram staining for classifying bacteria.

So the correct option is 'Janus Green'.