Biochemistry: Essentials for Life Organic vs. Inorganic compounds

Important Inorganic Compounds 1. Water…….IS AMAZING! 60-80% of body……..Coincidence? Vital Functions:

Journal Based on lecture and AMAZING demos WHY is water found in such high amounts in the body? Remember: structure determines function

Important Inorganic Compounds 2. Salts - mostly Ca and P in bones and teeth

Important Inorganic Compounds 3. Acids and Bases Neutralization Reaction HCl + NaOH  NaCl + H2O Homeostasis?

pH Scaled by increasing concentration of hydrogen ions (H+) - (10x’s) pH 4 = 100 H+ pH 3 = 1000’s H+ Blood lab Figure 2.11

Buffer Video: Carbonic Acid-Bicarbonate Buffer

Quick Write Give examples of inorganic substances and the role they have in the human body.

Important Organic Compounds Carbohydrates Monosaccharides Disaccharides Polysaccharides

Important Organic Compounds Proteins

Proteins Account for over half of the body’s organic matter Functions: Fibrous (structural) – collagen, keratin Globular (communication) – antibodies, hormones Catalysts – Enzymes Membrane Transport – protein channels

Important Organic Compounds Lipids

Common Lipids in Body Plasma membrane/phospholipids Fatty Acids

Lipids Lipids Cont’d Eicosanoid Steroids Triglycerides (Neutral Fats) (prostaglandin) Steroids Triglycerides (Neutral Fats) Lipids Figure 2.14c

Important Organic Compounds Nucleic Acids Chains of nucleotides

Examples of Nucleic Acids Deoxyribonucleic acid (DNA) Ribonucleic Acid (RNA) Figure 2.18c

Important Organic Compounds Adenosine triphosphate (ATP)

Simplified ATP Use Energy used to make ATP Energy given off for cellular activities

How ATP Drives Cellular Work Figure 2.20

Quick Write Name the 5 Organic compounds and an example of them in the body: 1. 2. 3. 4. 5.