Question

16 multiple choice 1 point what kind of biological molecules are these? carbohydrates nucleic acids lipids proteins

Explanation:

The structure on the left shows a glycerol - fatty acid structure which is characteristic of lipids. The structure on the right is a lipid - bilayer, a common structure in cell membranes made of lipids. Carbohydrates have a different general structure with more hydroxyl groups and a characteristic ratio of carbon, hydrogen and oxygen. Nucleic acids are composed of nucleotides. Proteins are polymers of amino acids.

Answer:

C. lipids