1. Chemical Compounds in Cells
Note Taking Guide

2. Elements
An element is any substance that cannot be broken down into simpler substances.
It’s smallest unit is the atom.
When two or more elements combine chemically, they form a compound.
Its smallest unit is called a molecule.

4. Complete this map organic compounds carbohydrates lipids proteins
nucleic acids
sugar
starches
fats & cholesterol
amino acids
DNA
RNA

5. Organic vs. Inorganic
Compounds that do not contain carbon are called inorganic compounds.

6. Carbohydrates
Carbohydrates are energy-rich compounds made of the elements carbon, oxygen, and hydrogen (CH20)
Cells use carbohydrates for producing energy.

8. Proteins
Proteins form parts of cell membranes and many parts of the cell’s organelles.
The small molecules that make up proteins are called amino acids.
Enzymes are types of proteins that speed up chemical reactions in a living thing.

11. Lipids List three types of lipids: Fats, oils, waxes
Like carbohydrates, lipids are energy-rich compounds, made of carbon, hydrogen, and oxygen.
Cells store energy in lipids to use later.

13. Nucleic Acids
Nucleic acids are very large organic molecules that contain genetic material.
There are two kinds of nucleic acids:
DNA and RNA

15. Water 4 ways cells use water: Solvent to dissolve things.
Helps chemical reactions take place.
Helps cells maintain size and shape.
Helps keep temperature stable.