A molecule that is composed only of chains and rings of hydrogen and carbon is called a
A) carbohydrate.
B) hydrocarbon.
C) polypeptide.
D) polysaccharide.

Question

Quizplus · Accepted Answer

A molecule composed only of hydrogen and carbon is called a hydrocarbon. Carbohydrates are composed of carbon, hydrogen, and oxygen and include sugars and starches. Polypeptides are chains of amino acids that make up proteins. Polysaccharides are complex carbohydrates made up of long chains of sugar molecules.

A Molecule That Is Composed Only of Chains and Rings