Which of the following best describes the structure of proteins?

Question

Quizplus · Accepted Answer

Proteins are made of carbon, hydrogen, oxygen, and nitrogen, which are arranged as chains (polymers) of amino acids.
Lipids are polymers of fatty acids. They contain a long, nonpolar hydrocarbon chain with a small, polar part containing oxygen.
Nucleic acids are composed of nucleotides, which are the monomers made of three components: a 5-carbon sugar, a phosphate group, and a nitrogenous base. Nucleic acids are DNA and RNA.
Steroids are a type of lipid. Steroids have two main functions: they are important parts of cell membranes; and they act as signaling molecules.

Which of the Following Best Describes the Structure of Proteins