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biology
CELL Vocabulary
| definition | answer |
|---|---|
| special boundary that controls what enters or leaves the cell... also known as cell membrane | plasma membrane |
| membrane bound structures that have special functions within eukaryotic cells | organelles |
| central organelle that contains cell's genetic material; called brain of the cell | nucleus |
| ability of plasma membrane (cell membrane) to selective what passes through the membrane | selective permeability |
| the ability of a substance to allow materials to move through it | permeability |
| barrier- area that separates 2 things | boundary |
| 2 layers of phospholipids are arranged tail-to- tail | phospholipid bilayer |
| semi-fluid material where chemical processes take place | cytoplasm |
| organelle that helps manufacture proteins | ribosomes |
| within the nucleus the site of ribosome production | nucleolus |
| opening on nuclear envelope that allows sixed particles to move into and out of nucleus | nuclear pore |
| membrane systems of folded sacs and interconnected channels that SERVES as site of protein and lipid synthesis (formation) | endoplasmic reticulum |
| area of the ER where ribosomes are attached and proteins are exported | rough endoplasmic reticulum |
| area of the ER that do NOT have ribosomes attached | smooth endoplasmic reticulum |
| flattened sac of membranes that modify, sort and package proteins into sacs called vesicles | Golgi apparatus (Golgi body) |
| sac (Storage tank) to store food, enzymes, or other materials needed by the cell | vacuole |
| trash can of cell; vesicles that contain waste products or worn out organelles of cells | lysosomes |
| organelle that provides energy for the cell; "power house of the cell" | mitochondria |
| organelles in plant cells that convert light and chemical energy into food for plant | chloroplasts |
| DeoxyriboseNucleicAcid- used to store information to make cell growth, function, and reproduction | DNA |
| thick, rigid mesh of fibers that protect and support a plant cell | cell wall |