| A | B |
|---|
| Cell | basic unit of all organisms |
| Electron Microscope | instrument that uses a beam of electrons instead of natural light to magnify structures up to 500,000 times actual size |
| Organelle | membrane-bound structures within eukaryotic cells |
| Chlorophyll | light-absorbing pigment in plants and some protists that is required for photosynthesis |
| Cilia | short, numerous, hairlike projections composed of pairs of microtubles |
| Endoplasmic reticulum | organelle in eukaryotic cells with a series of highly folded membranes surrounded in cytoplasm |
| Lyposome | organelles that contain digestive enzymes |
| Mitochondria | eukaryotic membrane-bound organelles that transform energy stored in food molecules into ATP |
| Ribosome | nonmembrane-bound organelles in the nucleus where enzymes and other proteins are assembled |
| Cell theory | the theory that all organisms are composed of cells, the cell is the basic unit of organization of organisms, and all cells come from preexisting cells |
| Eukaryote | unicellular or multicellular organisms, such as yeast, plants, and animals, composed of eukaryotic cells, which contain a true nucleus and membrane-bound organelles |
| Prokaryote | unicellular organisms, such as bacteria, composed of prokaryotic cells |
| Chloroplast | chlorophyll-containing cell organelles found in the cells of green plants and some protists |
| Cytoplasm | clear, gelatinous fluid in eukaryotic cells that suspends the cell's organelles and is the site of numerous chemical reactions |
| Flagella | long,hairlike projections composed of pairs of microtubles |
| Microfilament | thin, solid protein fibers that provide stuctural support for eukaryotic cells |
| Nucleolus | organelle in eukaryotic cell nucleus that produces ribosomes |
| Vacuole | membrane-bound fluid-filled space in the cytoplasm of plant cells used for the temporary storage of materials |
| Compound light microscope | instrument that uses visable light and a series of lenses to magnify objects in steps |
| Nucleus | in eukaryotic cells, the central membrane-bound organelle that manages cellular functions and contains DNA |
| Cell wall | firm, fairly rigid structure located outside the plasma membrane of plants, fungi, most bacteria, and some protist |
| Chromatin | long, tangled strands of DNA found in the eukaryotic cell nucleus during interphase |
| Cytoskeleton | cellular framework found within the cytoplasm composed of microtubles and microfilaments |
| Golgi Apparatus | organelle in eukaryotic cells with a system of flattened tubular membranes |
| Microtubule | thin,hollow cylinders made of protein that provide structural support for eukaryotic cells |
| Plastid | group of plant organelles that are used for storage of starches, lipids, or pigments |
