With What Molecules in a Cell Does Osmium Tetroxide Primarily

Question

With what molecules in a cell does osmium tetroxide primarily react?
A)DNA
B)RNA
C)fatty acids
D)proteins
E)carbohydrates

Accepted Answer

Osmium tetroxide primarily reacts with fatty acids by adding to the carbon-carbon double bonds present in unsaturated fatty acids, making it useful for staining lipid-rich structures in cells.