1. Organic Molecules

3. CHNOPS = elements of life

4. Monomers • Simple organic molecules that exists individually or can link with other monomers • Examples: monosaccharide, amino acid, nucleotide

5. Polymers • Many monomers linked together • Example: carbohydrates, protein, nucleic acid

7. Carbohydrate • Monomer = monosaccharide • Elements: C, H, O • H:O=2:1

8. Disaccharides

10. Functions • Short-term energy storage • Starch and glycogen • Structure • Chitin and cellulose • Cell-to-cell recognition

11. Nucleic Acids • Monomer = nucleotides • Elements: C, H, P, N O

12. Nitrogenous Bases

13. Phosphodiester bonds form between nucleotides to form nucleic acids

14. Examples of Nucleic Acids • DNA (deoxyribonucleic acid) • RNA (ribonucleic acid) • ATP (adenosine triphosphate)

16. Proteins • Monomer = amino acids • Elements = C, H, O, N, S

19. Alanine

26. Lipids • Grouped together because have 1 thing in common • No affinity for water! • Elements: C, H, O, P (sometimes)

27. Triglyceride

28. Phospholipid

29. Steroids

30. Function • Energy storage (2x as much energy as carbs and proteins) • Structure • Cell membrane • Communication • Steroid hormones