Living Things are composed of 4 Main Elements

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Presentation transcript:

Living Things are composed of 4 Main Elements

Our focus will be Carbon (C) Carbon cannot be created or destroyed on the earth. It constantly cycles through earth’s systems by changing form.

Carbon can be found in the Biosphere Carbon is a major part of all macromolecules Macro means large A macromolecule is a large molecule.

Macromolecules containing chemical energy Carbohydrates Function: Supply the body with energy Examples: Sugar (Glucose) Pasta/rice Potatoes Bread Fruits

Function: Storing energy Examples: Cheese Fatty meats Macromolecules containing chemical energy 2. Lipids (Fats, Oils) Function: Storing energy Examples: Cheese Fatty meats Mayonnaise/Dressing Oils

Function: Building and Repairing of Body Parts Examples: Other Macromolecules found in living things 3. Proteins Function: Building and Repairing of Body Parts Examples: Found in muscle Hair, Nails Skin Other Organs

Function: Chemical Codes Examples: DNA RNA Other Macromolecules found in living things 4. Nucleic Acids Function: Chemical Codes Examples: DNA RNA

Carbon moves from the atmosphere to plants. In the atmosphere, carbon is attached to oxygen in a gas called carbon dioxide (CO2). Through the process of photosynthesis, carbon dioxide is pulled from the air to make plant food (sugar) from carbon.

Organisms that change carbon dioxide to chemical energy in the form of glucose (sugar) are known as: AUTOTROPHS Autotrophs make their own food so they are called the PRODUCERS