| A | B |
| centrioles | Animal cell organelle used in cell division |
| cilia | Hairlike organelles that allow some cells to move |
| flagella | Long whip-like tail that allows some cells to move |
| vacuoles | Fluid filled membranes used to store materials |
| plastids | Organelles found only in plant cells |
| leucoplast | Starch storage plastid |
| chromoplast | Pigment storage plastid |
| chloroplast | Green plastid that carries out process of photosynthesis |
| diffusion | Molecule movement from high concentration to low concentration |
| concentration gradient | difference in concentration between a region of high concentration and a region of low concentration |
| facilitated diffusion | More rapid movement of molecules from a region of high concentration to a region of low concentration |
| osmosis | Diffusion of water through a semipermeable membrane |
| isotonic solution | Solution with the same amount of dissolved substances as a cell |
| hypotonic solution | Solution with the less dissolved substances than a cell |
| hypertonic solution | Solution with the more dissolved substances than a cell |
| plasmolysis | Shrinkage of the cytoplasm of a cell due to osmosis |
| passive transport | Movement of materials across a cell membrane without using energy |
| active transport | Movement of materials across a cell membrane using energy |
| endocytosis | Process of moving material into a cell using a vesicle |
| pinocytosis | Process of moving liquid material into a cell using a vesicle |
| phagocytosis | Process of moving solid material into a cell using a vesicle |
| exocytosis | Process of moving material out of a cell using a vesicle |
| tissue | A group of cells that perform one function together |
| organ | A group of tissues that perform one function together |
| epithelial tissue | Tissue that covers body surfaces and lines body cavities |
| connective tissue | Tissue that supports other body tissues and binds tissues and organs together |
| muscle tissue | Tissues specialized to contract or shorten |
| endosymbiosis | Condition where one organism lives inside another one and both organisms benefit |
| chlorophyll | Green pigment involved in photosynthesis |
| Hooke | Discovered cells using cork |
| Leeuwenhoek | Used simple microscope to see microorganisms |
| Durochet | Proposed that living things are made of cells |
| Brown | Found the nucleus in orchid cells |
| Schleiden | Plants are made of cells |
| Schwann | Animals are made of cells |
| Virchow | All cells come from cells |
| prokaryotic cells | Primitive cell that have no membrane around the nucleus |
| eukaryotic cells | Advanced cells that have a membrane around the nucleus |
| organelle | ) Structure inside of a cell that has a specific function |
| cell wall | Organelle that gives shape to plant, fungi, and bacteria cells |
| cellulose | Material that makes up the cell wall |
| cell membrane | Separates cell from surroundings and controls what enters and leaves the cell |
| cytoplasm | Watery material between the cell membrane and nuclear membrane |
| nucleus | Control center for cell metabolism and reproduction |
| nuclear envelope | Membrane that separates the nucleus from the rest of the cell |
| nucleoplasm | Watery material found inside the nucleus |
| nucleolus | Dense body inside nucleus that is made of DNA, RNA, and proteins. It makes ribosomes |
| chromatin | Long thin threads of DNA found in the nucleus |
| chromosomes | Short thick thread of DNA found in the nucleus when cell is dividing |
| endoplasmic reticulum | Continuous network of channels that transport materials through the cell |
| rough endoplasmic reticulum | Endoplasmic reticulum covered ribosomes |
| smooth endoplasmic reticulum | Endoplasmic reticulum that has no ribosomes |
| ribosome | Sites of protein synthesis in the cell |
| golgi bodies | Flattened sacs that process, package, and store products to be released from the cell |
| secretion | Process in which materials made inside the cell are released for use outside the cell |
| lysosomes | Single membrane packages of strong digestive (hydrolytic) enzymes |
| mitochondria | Organelle that carries out cellular respiration |
| microtubules | Hollow tubes that from skeleton of cell and are part of centrioles, cilia, and flagella |
| microfilament | Solid tubes of contractile proteins in cytoplasm |