Cell vocabulary
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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| Cell | the smallest structural and functional unit of an organism. {eukaryotic or prokaryotic].
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| Organelle | any of a number of organized or specialized structures within a living cell.
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| Prokaryotic | A prokaryote is a unicellular organism that lacks a membrane-bound nucleus
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| Eukaryotic | A eukaryote is any organism whose cells have a cell nucleus and other organelles enclosed within membranes.
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| Multicellular | multicellular organisms are organisms that consist of more than one cell.
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| Unicellular | A single cell.
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| Biotic | Living. Plant and animals
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| Abiotic | Non-Living, Pysical rather than biological. Sun, rocks, air
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| Plasma membrane (Cell Membrane) The Gatekeeper | Membrane that surrounds a cell. It controls which substances move into and out of the cell
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| Cell wall | a rigid layer surrounding the plasma membrane of the cells of plants, fungi, and bacteria. It provides support to a plant.
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| Chloroplast | a plastid that contains chlorophyll and in which photosynthesis takes place.
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| Mitochondria (Power Plant of the Cell) | an organelle found in large numbers in most cells.It converts food energy to energy used by the cell.
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| Cytoplasm | Fluid material within a living cell. It fills most of the cell and allows organelles to move around in a cell.
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| Lysosome | Organelle in the cytoplasm of eukaryotic cells. It breaks down food particles and worn-out cell parts.
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| Nucleus | Control center of the cell. It directs cell activities
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| Cell theory | is the fundamental structural and functional unit of living matter and that the organism is composed of autonomous cells with its properties being the sum of those of its cells.
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| Tissue | tissue is a cellular organizational level intermediate between cells and a complete organ.
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| Organ | a group of tissues in a living organism that have been adapted to perform a specific function.
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| Organ system | an organ system is a group of organs that work together to perform one or more functions.
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| Organism | An individual living thing that can react to stimuli, reproduce, grow, and maintain homeostasis. It can be a virus, bacterium, protist, fungus, plant or an animal.
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| Homeostasis | The ability to maintain a constant internal environment in response to environmental changes.
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| Rough Endoplasmic Reticulum (Rough ER) | Organelle that processes and transports proteins needed by the cell
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| Smooth ER | Organelle that processes and transports substances other than proteins. It has no ribosomes.
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| Golgi Apparatus (Cell Warehouse) | An organelle that packages and distributes proteins and materials from the ER and sends them to other parts of the cell
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| Centrioles |
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| Nucleoleus |
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| Microtubules |
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| Vesicles |
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| Microvilli |
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| DNA | the hereditary material in a cell that carries instructions for making proteins
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| Central Vacuole | A large sac filled with water and makes a plant more rigid. It helps stand tall!
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| Chloroplast | Plant organelle that makes food for cells using energy from the sun (photosynthesis)
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| Ribosomes | Produce proteins needed by the cell
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