1. Domains & Kingdoms

2. Domains/Kingdoms 3 Domains 1) Bacteria 2) Archaea 3) Eukarya
Eubacteria
Archaebacteria
Protista
Fungi
Plantae
Animalia

3. Molecules of Life
Chapter 2 Section 3

4. Carbohydrates
Organic compounds composed of carbon, hydrogen, and oxygen in a ratio of about one carbon atom to two hydrogen atoms to one oxygen atom
Three Types:
Monosaccharides
Disaccharide
Polysaccharide

5. Carbohydrates (cont) Roles of Carbohydrates
Store Energy (starch, glycogen)
Structural Components/Material (cellulose, chitin)

6. Proteins
Organic compounds composed mainly of carbon, hydrogen, oxygen, and nitrogen.
Proteins are formed by a linkage of Amino Acids

7. Proteins (cont) Roles of Proteins Serve as enzymes (Lactase)
Structural Components (hair, cartilage)
Peptide Hormones (insulin)

8. Enzymes
RNA or protein molecules that act as a catalyst (speed up) in a reaction.

9. Lipids
Large, nonpolar organic molecules. They do not dissolve in water.
Lipids include:
Triglycerides, phospholipids, steriods, waxes, fatty acids, and pigments.

10. Lipids (cont) Roles of Lipids: Store energy (body fat)
Form membranes (cell membrane)
Steroid hormones (Testosterone)

11. Nucleic Acid
Very large and complex organic molecules that store and transfer important information in the cell.
Two major types of nucleic acids:
DNA (Deoxyribonucleic acid)
RNA (Ribonucleic acid)

12. Nucleic Acid (cont) Roles of Nucleic Acids:
Stores genetic information (DNA)
Direct production of proteins (RNA)