Which of the following correctly explains differences between steroids and enzymes? (1 point)
a) steroids are proteins made up of amino acids, while enzymes are carbohydrates made up of carbon, hydrogen, and oxygen.
b) steroids are the building blocks of amino acids and contain an amino group, while enzymes are the building blocks of nucleic acids and contain nitrogenous bases.
c) steroids are the building blocks of nucleic acids and contain nitrogenous bases, while enzymes are the building blocks of phospholipids and contain a hydrophilic end and a hydrophobic end.
d) steroids are lipids and are made up of carbon, hydrogen, and oxygen, while enzymes are proteins and are made up of amino acids.