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Definition
| process that moves ions/molecules across c3ell membrane and against concentration gradient |
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| molecules attach to these in order to pass through the cell membrane |
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Definition
| controls passage of substances into and out of the cell; maintains receptors for ligands |
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| divides during mitosis and forms the centers toward which the chromosomes move upon division of the cell |
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Definition
| regulates protein synthesis and other molecular interactions |
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Definition
| composed mostly of DNA; transmits genetic information |
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Definition
| rhythmic beating of these propels mucus and debris across luminal surface of cell |
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Definition
| cellular material that is not part of the nucleus |
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Definition
| strength, structure, support of cell; maintains cell's shape; contains enzymes needed for metabolic reactions |
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Definition
| movement of solutes from an area of high concentration to one of low concentration |
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Definition
| double helix; contains genes |
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Definition
| enables large particles, liquids, and even other cells to be engulfed by a cell |
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Definition
| substances are exported from intracellular environment into extracellular space |
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Definition
| when a molecule attaches to a carrier protein and passes through cell membrane |
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Definition
| liquids pushed through membrane if pressure on one side is greater than the other |
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Definition
| form of reproduction (primarily bacteria and protozoa); organism splits into two or more whole units |
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Definition
| whiplike appendages of single celled organisms that move rapidly to produce motion |
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Definition
| nucleic acid with a unique structure; trait determiner |
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Definition
| packaging and alteration of substances for secretion or internal use; lysosome formation |
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Definition
| the force that propels a liquid |
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Definition
| two layers of phospholipid molecules; hydrophilic on outside, hydrophobic on inside |
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Definition
| digestion of absorbed material; autolysis |
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Definition
| cell division of sex cells where cell receives half the chromosomes from each parent |
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Definition
| integral proteins and glycoproteins that act as binding sites on cell surface |
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Definition
| long hollow tubes; form "cables" for mitochondria, lysosomes, and secretory granules to attach to |
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Definition
| cell division involving formation of chromosomes, spindle fibers, and division of chromosomes |
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Definition
| separates nucleus from cytosol; made of two lipid bilayers |
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Definition
| ribosomal subunits are made here |
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Term
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Definition
| phosphoric acid, pentose sugars, and pyrimidine or purine bases that make up nucleic acids |
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Term
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Definition
| contains and processes genetic information; controls cell metabolism and protein synthesis |
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Definition
| the movement of water across a cell membrane |
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Definition
| detoxify various molecules such as alcohol and formaldehyde; remove free radicals |
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Definition
| an abnormal condition of engulfing or eating cells |
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Definition
| site of protein synthesis |
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Definition
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Term
| rough endoplasmic reticulum |
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Definition
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Definition
| a membrane that permits the diffusion of one component of a solution but not the other |
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Term
| smooth endoplasmic reticulum |
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Definition
| synthesis and storage of lipids; particularly steroids and phospholipids |
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Term
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Definition
| aid in mitosis by connecting to the cell's chromosomes at their centromeres, creating the pull necessary to divide them |
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Term
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Definition
| clear space in the cytoplasm of a cell |
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Term
| 4 nitrogen bases found in DNA and RNA |
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Definition
Both: Adenine, Cytosine, Guanine
DNA only: Thymine
RNA only: Uracil |
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