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Chapter 3
sec. 1
| Question | Answer |
|---|---|
| Element | Any Substance that cannot be broken down into simpler substances. |
| Compound | Two or more elements that are chemically combined. |
| Carbohydrate | An energy-rich organic compound made of elements carbon, hydrogen, and oxygen. |
| Lipid | Energy-rich organic compound, such as a fat, oil, or wax, that is made of carbon, hydrogen,and oxygen |
| Protein | large organic molecule made of carbon, hydrogen, oxygen, nitrogen, and sometimes sulfur |
| Amino Acid | a small molecule that is linked chemically to other amino acids to form proteins |
| Enzyme | a protein that speeds up chemical reactions in a living thing |