| A | B |
|---|
| element | any substance that cannot be broken down into simpler substances. |
| atom | smallest unit of an element |
| compound | two or more elements chemically combined |
| molecule | the smallest unit of a compound |
| organic compound | most compounds that contain carbon |
| carbohydrates | sugars and starches |
| Proteins | found in foods such as meat, eggs, nuts, milk and eggs |
| enzyme | speeds up chemical reactions |
| amino acids | building blocks of proteins |
| lipids | contain large amounts of energy |
| cholesterol | a waxy type of lipid found in cell membranes |
| nucleic acids | contain instructions of life |
| DNA, RNA | the two types of nucleic acids |
