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 |