1. 3-2 Molecules of Life

2. 3-2 Molecules of Life

3. All life on Earth is made up of 4 things…
Proteins
Lipids
Nucleic Acids
Carbohydrates

4. All life on Earth is made up of 4 things…
Proteins
Lipids
Nucleic Acids
Carbohydrates
All 4 are organic, which means they’re made mostly of carbon

5. Proteins Definition – organic compound that helps build cells
Building block = amino acids

6. Proteins
Found in skin and muscles, and everywhere else

7. Proteins
Examples:
Keratin (hair)
Collagen (bones, muscles, skin)

8. Proteins
Food Examples:
Meat and nuts are high in protein

9. Carbohydrates
Definition – organic compounds that provide energy to the cell

10. Carbohydrates
Definition – organic compounds that provide energy to the cell
Building block = monosaccharides

11. Carbohydrates
Found in all cells as energy

12. Carbohydrates
Found in all cells as energy
Can be sugars OR starches

13. Carbohydrates
Examples:
Glucose
Fructose
Sucrose (table sugar)

14. Carbohydrates
Food Examples
Breads
Fruits
Anything with sugar

15. Nucleic Acids Hereditary information and storage ex. DNA and RNA
Building blocks = nucleotides

16. Nucleic Acids
Found in all cells (DNA)
Examples : DNA and RNA

17. Lipids
Definition – organic compounds made of fatty acids that don’t dissolve in water
Building block = fatty acids

18. Lipids
Examples:
Oils
Fats
Steroids
Waxes

19. Lipids
Saturated-single bonded carbon chain

20. Lipids Saturated-single bonded carbon chain
Unsaturated-double bonded carbon chain