| A | B |
|---|
| This is made up of only one kind of atom | Element |
| This is made up of two or more elements that are chemically combined | Compound |
| How many kinds of atoms are in this equation: 2CO + O2 --> 2CO2 | 2 |
| How many kinds of molecules are in this equation: 2CO + O2 --> 2CO2 | 3 |
| How many molecules are in this equation: 2CO + O2 --> 2CO2 | 5 |
| How many atoms are in this equation: 2CO + O2 --> 2CO2 | 12 |
| You can start a fire by rubbing 2 sticks together. The friction is the | Activation energy |
| When the H of one water molecule is attracted to the O of another water molecule this is a | Hydrogen bond |
| It af atom loses an electron is becomes a(n) | Cation |
| When an atom gains an electron it becomes a(n) | Anion |
| When a ___ bond is formed the shared electrons help to fill electron shells. | Covalent |
| This type of bond is formed when electrons are transferred between atoms. | Ionic |
| This food has a high concentration of H+ ions. | Apple, pH 2.9 |
| This food has a low concentration of H+ ions. | Milk, pH 8.6 |
| Carbohydrates do not contain this element. | Nitrogen |
| The monomer of a carbohydrate is | Glucose |
| Nitrogen is found in this macromolecule. | Protein |
| Glycerol and fatty acids are the building blocks for this. | Lipid |
| The # of thymine molecules in a sample of DNA will always be the same as the # of these. | Adenine |
| The primary use of this macromolecule is as a source of energy. | Carbohydrate |
| In order to bond two amino acids together ___ must be released. | Water |
| The 4 nucleotides in DNA differ from one another only in the ___ they contain. | Nitrogen Base |
| This base will NOT be found in an RNA molecule. | Thymine |
| Genetic information is passed from parent to offspring in the form of this. | DNA |
| These are required for most chemical rxns in living cells. | Enzymes |
| The monomer of a protein is a(n) ___. | Amino Acid |
| The reaction in which a bond is broken releasing a monomer from a polymer. | Hydrolysis |
| A reaction in which a bond is created between monomers. | Dehydration Synthesis |
| These bonds hold amino acids together. | Peptide |
