You work for a company that manufactures food products. A new "wonder food" is being distributed by a rival company. The researchers in your company determine that the "wonder food" contains only carbon, oxygen, hydrogen, and nitrogen. At this point, your researchers can say with certainty that the food:

a. includes proteins.
b. could only be made of carbohydrates.
c. could only be made of triglycerides.
d. does not include proteins or nucleic acids.

At this point, your researchers can say with certainty that the food INCLUDES PROTEIN.

Protein is One of three major classes of food or source of food energy abundant in animal-derived foods (i.e. meat) and some vegetables, such as legumes. It is a large, complex naturally-produced molecules composed of one or more long chains of amino acids, in which the amino acid groups are held together by peptide bonds.

Protein is composed of smaller chemical units called amino acids. Amino acids are made of the elements CARBON, HYDROGEN, OXYGEN, NITROGEN.