A: Janus green B is a vital stain for locatin | vedclass

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(A) vital stain is a dye used to stain living cells without killing them. Janus green $B$ is a specific vital stain used to identify mitochondria in l

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Assertion and Reason both are correct and Reason is the correct explanation of Assertion.

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(A) vital stain is a dye used to stain living cells without killing them. Janus green $B$ is a specific vital stain used to identify mitochondria in living cells.In its oxidized state,Janus green $B$ is blue-green,and in its reduced state,it is colorless.Inside the mitochondria,the enzyme cytochrome oxidase (part of the electron transport chain) keeps the dye in its oxidized (blue-green) state,thereby making the mitochondria visible under a microscope.Since the Reason correctly explains the mechanism behind why Janus green $B$ stains mitochondria,both statements are correct and the Reason is the correct explanation of the Assertion.

$A$: Janus green $B$ is a vital stain for locating mitochondria.
$R$: Janus green is oxidised by cytochrome oxidase present in mitochondria.

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$A$: Janus green $B$ is a vital stain for locating mitochondria.$R$: Janus green is oxidised by cytochrome oxidase present in mitochondria.