| A | B |
|---|
| All Living things are composed of one or more cells. In organisms, cells are composed of one or more cells. Cells are produced only from existing cells. | The Cell Theory |
| Seperates a cell from its enviroment. Regulates what goes in and out of the cell. | Cell (plasma) Membrane |
| Proteins are made here. | Ribosomes |
| Genetic material (deoxyribonucleic acid.) | DNA |
| These cells lack internal compartments (organelles) and their genetic material (DNA) is a single circular molecule. | Prokaryotic Cells |
| All living cells that are not bacteria. | Eukaryotic Cells |
| This enabled cells to specialize. | Multicellularity |
| The cells smallest components. | Atoms |
| A cluster of particles in the center of a cell. | Nucleus |
| A group of the same kinds of atoms. | Element |
| Chemical behavior is determined by these. (negative charge.) | Electrons |
| These determine the atomic number of an element. (positive charge.) | Protons |
| A group of atoms held together by a chemical bond. | Compounds |
| This bond shares electrons. | Covalent Bond |
| Atoms give up or gain atoms in this bond. | Ionic Bond |
| This bond links molecules instead of atoms. | Hydrogen Bond |
| This powerful solvent is polar, cohesive, stores heat and ionizes. | Water |
| A compound forming H+ ions in water. | Acid |
| A compound forming OH- ions in water | Base |
| A scale that measures acids and bases on a scale of 0-14 | pH scale |
| Carbohydrates, lipids, proteins and nucleic acids are all _? | Macromolecules |
| Cells use these to store energy and provide support. | Carbohydrates |
| These store energy and are a component of cell membranes. | Lipids |
| These are made of amino acids and form hair and muscle. | Proteins |
| These contain the cells hereditary information. | Nucleic Acids |
| These consist of an organic base, sugar and 3 phosphate groups. | Adenosine Triphosphate (ATP) |
