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| 5131432024 | cell theory | all organisms consist of one or more cells; cells are basic unit of life; all cells come from division of pre-existing cells. | 0 | |
| 5131438801 | cytoplasm | jellylike mixture of water and solute in a cell. | 1 | |
| 5131443577 | Nucleus | Holds the DNA, double membrane | 2 | |
| 5131446879 | Organelle | structure in a cell that carries out a specific function | 3 | |
| 5131447668 | Plasma membrane | Functional barrier of a cell | 4 | |
| 5131455886 | Biofilm | Community of microbes living within a shared mass of secreted slime. | 5 | |
| 5131457659 | cell wall | rigid but permeable structure that surrounds the plasma membrane of some cells. | 6 | |
| 5131463892 | flagellum | long, slender cellular structure used for motility | 7 | |
| 5131465428 | Nucleoid | region where DNA is concentrated in a bacterium | 8 | |
| 5131468815 | Pilus | a protein filament that projects from the surface of some prokaryotic cells | 9 | |
| 5131472322 | plasmid | small circle of DNA in some bacteria | 10 | |
| 5131473762 | Ribosome | small organelle that carries out protein synthesis. | 11 | |
| 5131479947 | Chromatin | Term for all of the DNA and associated proteins. | 12 | |
| 5131481446 | Nuclear Envelope | a double membrane around the nucleus | 13 | |
| 5131483006 | Nucleolus | in the nucleus, a dense regions where ribosome subunits are produced. | 14 | |
| 5131488223 | nucleoplasm | fluid enclosed by the nuclear envelope | 15 | |
| 5131491188 | central vacuole | fluid filled organelle in many plant cells | 16 | |
| 5131493340 | endomembrane system | series of interacting organelles; ER, Golgi bodies, vesicles, that produce lipids and proteins. | 17 | |
| 5131499027 | endoplasmic reticulum | membrane-enclosed organelle that is continuous with the nuclear envelope, makes lipids, breaks down carbs, produces proteins. | 18 | |
| 5131506849 | Golgi body | organelle that modifies proteins and lipids, then packages products into vesicles. | 19 | |
| 5131510152 | lysosome | enzyme-filled vesicle that breaks down cellular waste | 20 | |
| 5131512839 | peroxisome | enzyme-filled vesicle that breaks down amino acids, fatty acids, and toxins. | 21 | |
| 5131517220 | vacuole | organelle filled with fluid | 22 | |
| 5131520731 | vesicle | Small, membrane-enclosed organelle; stores, transports, or breaks down contents. | 23 | |
| 5131535354 | Mitochondrion | organelle that produces ATP | 24 | |
| 5131535355 | Chloroplast | Organelle of photosynthesis | 25 | |
| 5131538159 | plastid | double membrane organelle that functions in photosynthesis, pigmentation, or storage in plant cells. | 26 | |
| 5131552055 | basal body | organelle that develops from a centriole | 27 | |
| 5131553198 | cell cortex | reinforcing mesh of cytoskeletal elements under a plasma membrane | 28 | |
| 5131556497 | centriole | barrel-shaped organelle from which microtubules grow | 29 | |
| 5131558518 | cilium | short, movable structure that projects from the plasma membrane of some eukaryotic cells. | 30 | |
| 5131563415 | cytoskeleton | dynamic framework of protein filaments that support, organize, and move eukaryotic cells and their structures | 31 | |
| 5131566440 | intermediate filament | stable cytoskeletal element that structurally supports cells and tissues | 32 | |
| 5131570140 | microfilament | a fiber of actin subunits | 33 | |
| 5131572410 | microtubule | large cytoskeletal fiber, made of tubulin subunits | 34 | |
| 5131575598 | motor protein | type of energy-using protein that moves cell parts | 35 | |
| 5131578744 | pseudopod | A temporary protrusion that helps some eukaryotic cells move and engulf prey. | 36 | |
| 5131586665 | adhering junction | cell junction that fastens an animal cell to another cell | 37 | |
| 5131588576 | cuticle | secreted covering at a body surface | 38 | |
| 5131590256 | extracellular matrix (ECM) | complex mix of cell secretions | 39 | |
| 5131594728 | gap junction | cell junction that forms a closable channel across plasma membrane of animal cells | 40 | |
| 5131598790 | lignin | material that strengthens plant cell walls | 41 | |
| 5131600080 | plasmodesma | cell junction that forms an open channel between cytoplasm of adjoining plant cells | 42 | |
| 5131603210 | primary wall | the first cell wall of young plant cells | 43 | |
| 5131604482 | secondary wall | lignin-reinforced wall that forms inside the primary wall of plant cells | 44 | |
| 5131608189 | tight junction | cell junction that fastens together the plasma membrane of adjacent animal cells. | 45 |
