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AP Bio - Cells Flashcards

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5593211090EukaryoteA cell that has DNA is enclosed in a nucleus, and other membrane-bound organelles.0
5593225790ProkaryoteA cell that contains no organelles and does not have the DNA enclosed in a nucleus. Only Bacteria and Archaea.1
5593249069NucleusA cell part enclosed by a membrane that contains DNA2
5593261057RibosomeA molecule made of RNA and protein that synthesizes proteins by translating RNA into amino acids3
5593281204PeroxisomeA cell part containing peroxidase that breaks down hydrogen peroxide, a byproduct of cell metabolism4
5593310884LysosomeA specialized vesicle that contains catalytic enzymes and digests complex molecules, often wastes.5
5593329433Endoplasmic ReticulumAn inter-connected membrane that assists with the synthesis, modification, and transport of proteins (Rough ER) and lipids (Smooth ER)6
5593357179Golgi ApparatusMembrane responsible for the final modification, sorting, and distribution of proteins and lipids.7
5593364628MitochondriaA membranous organelle that synthesizes ATP during cellular respiration. Contains own DNA and can self-replicate.8
5593377333VacuoleA vesicle specialized for storage of fluids or materials within a cell.9
5593387373ChloroplastThe site of photosynthesis in plant cells.10
5593400354Cell WallA rigid external layer of material surrounding cells of plants, fungi, bacteria, and some protests.11
5593415104Cell MembraneA phospholipid bilayer responsible for regulation of substances moving into and out of the cell.12
5593450308CelluloseComplex carbohydrate that comprises cell walls13
5593464776DiffusionThe net movement of ions or molecules from a region of higher concentration to a region of lower concentration14
5593472974OsmosisThe passive transport of water across a selectively permeable membrane.15
5593483904Facilitated DiffusionWhen specialized membrane proteins aid the movement polar and charged molecules across the cell membrane16
5595581228HypertonicSolution containing dissolved substances at a higher concentration than the cell it surrounds17
5595598742HypotonicSolution containing dissolved substances at lower concentrations than the cell it surrounds18
5595608632IsotonicEqual concentrations of water inside and outside of a cell.19
5595616484PlasmolysisWhen cells shrink due to outward osmotic movement of water.20
5595625448TurgidWhen cells are distended due to internal pressure of water.21
5595643703Active TransportMovement of ions against a concentration gradient across a membrane from the side with the lower concentration to the side with the higher concentration.22
5595660988EndocytosisWhen molecules are brought into a cell by being engulfed by the cell membrane, which then forms a vesicle.23
5595677708ExocytosisWhen molecules are removed from cells by fusion of a secretory vesicle with the cell membrane.24
5595697448Gap JunctionsA channel between cells that allows passage of ions and small molecules.25
5595704204PlasmodesmataA small channel in the cell wall that connects plant cells.26
5595757730ParacrineHormone signaling that only affects nearby cells; ex. nerve synapses.27

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