Question

Lipids are organic compounds characterized by their _____.

hint: Lipids are a diverse group of naturally occurring organic compounds characterized by their physical properties.

  

insolubility in water and their solubility in organic solvents

molecular structure composed of a glycerol that is linked to a phosphate group and two hydrocarbon chains of either isoprenoids or fatty acids

molecular structure containing four fused rings of carbon atoms

molecular structure composed of three fatty acids linked to a three-carbon molecule called glycerol

Answer 1

Ans) insolubility in water and their solubility in organic solvents

Explaination: solubility is a physical properties. So statement lipids are organic compounds characterized by insolubility in water and their solubility in organic solvents explain lipids.

While all other three options that are:

• molecular structure composed of a glycerol that is linked to a phosphate group and two hydrocarbon chains of either isoprenoids or fatty acid.
• molecular structure containing four fused rings of carbon atoms.
• molecular structure composed of three fatty acids linked to a three-carbon molecule called glycerol.

All these three options explain the chemical or structural properties of lipids not physical properties.