Which of the following best describes the structure of a protein molecule

a. a glycerol molecule attached to three fatty acids

b. complex, folded chains of amino acid

c. straight chains of fatty acids

d. carbon atoms linked in a ring

Answer: B. complex, folded chains of amino acid

Proteins are a class of large organic compounds composed of amino acids in the form of one or more long chains. The amino acid sequence determines the protein's shape and is in turn dictated by the DNA sequence that codes it. Proteins are vital for all the body's functions.

integrated circuit (ic) is defined as a set of electronic circuits on one small flat piece of semiconductor material, normally silicon. a functional electronic circuit requires transistors, resistors, capacitors, inductors, etc., and the connections between them.