Question

Mitochondria in the living cell can readily be identified from other organelles of the cell through light microscope by using
A) Cotton blue
B) Osmic acid
C) Janus green - B
D) Lead citrate

Answer 1

Mitochondria in the living cell can readily be identified from other organelles of the cell through light microscope by using C) Janus green - B

• Janus green - B is a staining dye which is used primarily for staining the mitochondria.
• Janus green-B is a dye which needs to be oxidized in order to become coloured.
• The ability of mitochondria to produce colour from the Janus green-B dye proves mitochondria to be an oxidizing agent.
• Hence, the correct option is C) Janus green - B.
• Other options such as option D) Lead citrate is not correct as lead citrate is usually used for the staining of heavy metals.

#SPJ3

Answer 2

Explanation:

Mitochondria in the living cell can readily be identified from other organelles of the cell through light microscope by using

C) Janus green - B