AP BIOLOGY

Detailed explanation-1: -Janus Green B is a dark green to black powder belonging to the phenazine group of dyes. Introduced by Leonor Michaelis in 1900, the interesting feature of this dye is that it must be oxidised to become coloured. In histology, this basic dye is used to stain mitochondria in living tissues.

Detailed explanation-2: -Abstract. Janus green B (JG-B) dye is used for vital staining of mitochondria and its reduction and oxidation shows the electron transfer chain alteration. The defect in electron transfer chain of mitochondria by paraquat is linked to free radical formation.

Detailed explanation-3: -Janus Green is basic dye and vital stain used in histology. It is also used to stain mitochondria supravitally.

Detailed explanation-4: -The Janus green is a basic dye which is also used as a vital stain in histology. This dye is used for staining the mitochondria.

Detailed explanation-5: -(d) Janus green is used to stain mitochondria. Janus green act as an indicator and changes colour according to the amount of oxygen present. It oxidizes to blue colour in. presence of oxygen and in its absence changes its colour to pink.