two amino acids joined together by a peptide bond

single molecule; small chemical unit that makes up a polymer

polymers made of amino acids (50-500 chains long)

hydrogen, oxygen, nitrogen, carbon, phosphorus

Divides a polymer into monomers through the addition of water

CarbonHydrogenOxygenNitrogen

Enzymes, Hormones, Antibodies, Hemoglobin, Collagen, keratin

Carbon, hydrogen, oxygen, phosphorus, sulfur, and nitrogen.

DNA and RNA

sucrose (glucose + fructose)maltose (glucose + glucose)lactose (galactose + glucose)

carbohydrate structure

Carbohydrates: main source of energy for plants and animals; proteins: regulation of cellular transportation of materials, cellular processes, formati...

lipid