Hank talks about the molecules that make up every living thing - carbohydrates, lipids, and proteins - and how we find them in our environment and in the food that we eat. Follow CrashCourse on Twitter: www.twitter.com/thecrashcourse Like CrashCourse on Facebook: www.facebook.com/youtubecrashcourse Resources for this episode in the Google Document here: dft.ba/-citations2 TAGS: biological molecules, carbohydrates, lipids, proteins, nucleic acids, food, biolography, william prout, urea, energy, monosaccharides, glucose, fructose, disaccharides, sucrose, polysaccharides, simple sugars, cellulose, starch, glycogen, glycerol, fatty acid, triglyceride, phospholipid, steroid, cholesterol, enzymes, antibodies, hormones, amino acids, nitrogen, polypeptides, protein synthesis, biology, molecule, crashcourse, hank green Support CrashCourse on Subbable: subbable.com/crashcourse