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Science Cell Vocab
Vocab
| Term | Definition |
|---|---|
| Unicellular | An organism that consists of one cell |
| Structure | the arrangement of parts in an organism |
| Chloroplasts | found only in plant and algae cells, this green organelle uses sunlight, carbon dioxide, and water to make sugar |
| Prokaryote | an organism that consists of a single cell that does not have a nucleus |
| Vacuole | this organelle stores water and other materials |
| Organism | a living thing; anything that can carry out life processes independently |
| Cell | the smallest unit that can perform all live processes |
| Organelle | one of the small bodies in a cell’s cytoplasm that are specialized to perform a specific function. |
| ATP | adenosine triphosphate is the substance where energy released by mitochondria is stored |
| Cell Membrane | acts as a barrier between the inside of a cell and the cell’s environment |
| Nucleus | the Brain of the cell and has DNA |
| Golgi Complex – | helps make and package materials to be transported out of the cell |
| Ribosome | cell organelle composed of RNA and protein, the site of protein synthesis |
| Vesicle | a small cavity or sac that contains materials to be moved in or out of a eukaryotic cell |
| Nucleolus | located in the nucleus, this organelle stores material used to make ribosomes |
| DNA | deoxyribonucleic acid, the cell’s genetic material that contains the information on how to make a cell’s proteins |
| Cell Theory – Three parts: | 1.All organisms are made of one or more cells 2.The cell is the basic unit of all living things. 3.All cells come from existing cells. |
| Function | the special, normal, or proper activity of an organ or part |
| Cytoskeleton | acts as both muscle and skeleton to keep the cell’s membrane from collapsing |
| Eukaryote | organism made up of cells that have a nucleus enclosed by a membrane; for example animals, plants, and fungi |
| Tissue | a group of similar cells that perform a common function |
| Lysosome | cell organelle that contains digestive enzymes |
| Flagellum | tail like structure on some bacteria that help the bacteria move |
| Lipids | do not dissolve in water and includes fats and cholesterol in the cell membrane |
| Multicellular | organism made of many cells; benefits include larger size, longer life, and cell specialization |
| Bacteria | most common prokaryote and are the world’s smallest cells |
| Hooke and Leeuwenhoek | used microscopes to look at cells and discovered that organisms were made of cells |
| Cell Wall | a rigid structure that surrounds the cell membrane and provides support to plant and fungi cells |
| Mitochondria | has two membranes and is where sugar is broken down to produce energy |
| Endoplasmic Reticulum | a system of folded membranes in which proteins, lipids, and other materials are made and is the internal delivery system of the cells having many tubes and passageways |
| Organ System | a group of organs that work together to perform body functions |
| Organ | a collection of tissues that carry out a specialized function of the body |
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vossmaggie
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