Osmium tetroxide is commonly used to:
A)stain specimens for light microscopy.
B)coat specimens for metal shadowing electron microscopy.
C)stain specimens for transmission electron microscopy.
D)measure the Ca²⁺ concentration inside living cells.

Question

Quizplus · Accepted Answer

Osmium tetroxide is primarily used to stain specimens for transmission electron microscopy. It is a powerful fixative that reacts with unsaturated lipids, forming electron-dense precipitates that allow for visualization of cell membranes and other structures at high resolution. It is not typically used for light microscopy or metal shadowing electron microscopy, nor is it used to measure Ca²⁺ concentration inside living cells.

Osmium Tetroxide Is Commonly Used To