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An element is any substance that cannot be broken down into simpler substances. The smallest unit of an element is an atom.
A compound is any chemical that is made of two or more different elements.
Inorganic compounds do not contain carbon. Examples: Water, Salt, and acids like sulfuric acid
Organic Compounds contain carbon and hydrogen and are usually associated with living things.
CHONPS: C arbon Hydrogen Oxygen Nitrogen Phosphorus Sulfur
Life as we know it is carbon based. Why? A carbon atom can form chemical bonds with other carbon atoms in long chains or rings. Carbon compounds in living things include: Carbohydrates Nucleic Acids Proteins Fats
Carbohydrates are energy-rich compounds made from the elements carbon, hydrogen, and oxygen. (CHO) Function: Cells use carbohydrates to get and store energy. Examples: Sugars and starches.
Proteins are large molecules made of carbon, hydrogen, oxygen, nitrogen, and sulfur. (CHONS) Proteins are made of smaller molecules called amino acids. Function: Build organelles, build body parts, helps with body defense. Examples: Hair, nails, enzymes.
Lipids are made by cells to store energy for long periods of time. They are composed of the elements carbon, hydrogen, and oxygen. (CHO) Function: Store long term energy. Examples: Fats, oils, and waxes.
Nucleic Acids are compounds made of long, repeating chains called nucleotides. They are made of the elements carbon, hydrogen, oxygen, nitrogen, and phosphorus. (CHONP) Function: Used to store genetic information. Examples: DNA and RNA