Macromolecules
Review
Element: made of only one atom Example: C = Carbon
Molecule: smallest unit of a substance, 2 or more elements Example: O2 = Oxygen
Compound: made of 2 or more different types of elements Example: CO2 = carbon dioxide
Macromolecules Macromolecules: Large molecules liked together
by smaller molecules Organic Compound: Chemical compound that
contains carbon atoms
4 Types:Carbohydrates Lipids Proteins Nucleic Acids
Carbohydrates
Carbohydrates: molecules including sugar and starch, release energy Made of carbon, hydrogen, and
oxygen Examples:
Sugars and Starches Candy, soda, pasta, bread
Carbohydrates
Some foods that contain a lot of Carbohydrates
Pasta Bread Potato
Lipids
Lipids: molecules including fats, oils, and waxes, store energy Help make up the cell membrane Examples:
Fats, Oils, and Waxes Candles, butter, cooking oil
Lipids
Cooking Oils Butter Candles
Things that contain lipids
Lipids
Camel
Polar Bear
Animal Examples
Protein
Protein: large molecules made up of amino acids, your body uses them for growth, repair, transport, and digestion
Examples: eggs, fish, meat, nuts – your muscles
Protein
Some examples of protein
MuscleMeats
Note: The meat you eat is just the muscle of some animal. For example, beef is cow muscle.
Same
Nucleic Acids
Nucleic Acids: store genetic information about an organism.
Examples: DNA RNA
Nucleic Acids
DNA