1. Macromolecules Name of PowerPoint Name of Course Name of Lesson
Project Lead The Way©
Copyright 2005

2. Macromolecules Large organic molecules Necessary for life
Contain carbon
Made by living organisms
Necessary for life
Made by combining smaller molecules
Polymers—made of repeating sub-units called monomers.
Examples: Proteins, Carbohydrates, Nucleic Acids

3. Four classes of Macromolecules
- Proteins
- Carbohydrates
- Nucleic Acids
- Lipids

4. Proteins Building Blocks = Amino Acids
Examples: ( pictures used with permission of Molymod, Inc.)
Tryptophan Histidine Leucine

5. Proteins Functions Structure (component of tissues and organs)
Movement
Communication between cells
Storage of materials
Transport of materials
Metabolic reactions (enzymes)
Protection from foreign materials (antibodies)

6. Carbohydrates Building Blocks = Monosaccharides
Mono = one
Saccharide = sugar
Examples of Monosaccharides
Glucose
Fructose
Galactose

7. Carbohydrates Large carbohydrates = Polysaccharides
Poly = many
Saccharide = sugars
Examples of Polysaccharides
Starch
Glycogen
Cellulose

8. Carbohydrates Functions Energy source Structure
Store energy for later use
Cell communication

9. Nucleic Acids Building Blocks = Nucleotide Two types of nucleic acids
Deoxyribonucleic Acid (DNA)
Ribonucleic Acid (RNA)

10. Nucleic Acids Functions: Passing traits from generation to generation
Protein production

11. Lipids: Not a polymer—no single type of building block Made of:
Carbon, Hydrogen, and Oxygen atoms
Examples:
Fats (triglycerides)
Steroids
Oils and waxes
Phospholipids
Fat soluble vitamins (A,E,D, and K)

12. Lipids Functions: Long term energy storage (triglycerides)
Cell communication (steroid hormones)
Structural (component of cell membranes)
Insulation
Protection (wax)