1. Chemical Compounds in Cells
Mrs. Johnson
Life Science

2. Elements and Compounds
Element is any substance that can not be broken down into a simpler substance.
The smallest unit of an element is an atom.
A compound is two or more elements combined chemically.
EX) water is a compound
Most chemical reactions in cells can not take place without water.
Two types of compounds: Organic and Inorganic

3. Inorganic and Organic Compounds
Organic compounds are compounds that contain carbon  (Carbohydrates, Lipids, Proteins, Nucleic Acids). 
In addition to providing energy for the cell carbohydrates are important components of some cell parts ( cellulose in cell walls).
Lipids are an energy source and make up most of the cell membrane.
Protein molecules are made up of smaller molecules called amino acids.
There are 20 common amino acids ,but cells can combine them in different ways to form different proteins.
Ex) Meat, eggs, Fish, nuts, and beans all are high in protein.

4. Inorganic and Organic Compounds
The proteins known as enzymes perform important functions in the chemical reactions that take place in cells. 
An enzyme is  a type of protein that speeds up a chemical reaction in cells.
Nucleic acids are very long organic molecules.
Nucleic acids contain the instruction needed to carry out all functions of life.
Tow kinds of Nucleic acids (DNA and RNA). 
DNA is the genetic material that carries information from the parent to offspring.
RNA plays an important roe in the production of proteins