What specific characteristic of alkane is suggested when their vapors, cause severe damage to lung tissue by dissolving the fatty material in cell membranes?
Alkanes dissolve in non-polar organic solvents
In most cases, like dissolves like. The fats and bodies have long hydrocarbon chains and they are not as polar as alcohols, water or carboxylic acids. Hence, alkanes being non-polar, they tend to dissolve in non-polar fats etc.
Also, alkanes are solvents for nonpolar organic materials such as fats and oils. Alkanes including both normal and cycloalkanes, are virtually insoluble in water but dissolve in organic solvents. The liquid alkanes are good solvents for many other covalent compounds.