front 1 Plasma Membrane | back 1 External boundary of cell; regulates flow of material into and out of the cell; site of cell signalling |
front 2 Lysosomes | back 2 Contains digestive enzymes of many varieties; "suicide sac" of the cell |
front 3 Mitochondria | back 3 Scattered throughout the cell; major site of ATP synthesis |
front 4 Micro villi | back 4 Slender extension of the plasma membrane that increase its surface area |
front 5 Inclussion | back 5 Stores glycogen granules, crystal, pigments; present in some cell types |
front 6 Golgi Apparatus | back 6 Membranous system consisting of flattened sacs and vesicles; packages proteins for export |
front 7 Nucleus | back 7 Control center of the cell; necessary for cell division and cell life |
front 8 Centrioles | back 8 Two rod shaped bodies near the nucleus; associated with the formation of the mitotic spindle |
front 9 Nucleuos | back 9 Dense nuclear body; packaging site for ribosomes |
front 10 Microfilament | back 10 Contractile elements of the cytoskeleton |
front 11 Rough endoplasmic reticulum | back 11 Membranous tubules covered with ribosomes; involved in intracellular transport |
front 12 Ribosomes | back 12 Attached to membrane system or scattered in the cytoplasm; site of protein synthesis |
front 13 Chromatin (Chromatin thread) | back 13 Threadlike structure in the nucleus; contains genetic material (DNA) |
front 14 Peroxisomes | back 14 Site of free radical detoxification |
front 15 Organelle | back 15 Metabolic machinery of the cell, and they are highly organized to carry out specific functions for the cell |
front 16 Cell | back 16 Structural and functional unit of all living things, is a complete enity |
front 17 Squamous Epithelium | back 17 A. Flat shaped B. Good for layering and overlapping |
front 18 Sperm | back 18 A. Flagella B. Allows the cell to be mobile |
front 19 Smooth Muscle | back 19 A. Has a fusiform shape B. Allows the muscle to tense and relax |
front 20 Red Blood Cells | back 20 A. Biconave shape B. Allows more surface area for efficient gas transfer |
front 21 Gap Junctions | back 21 Passageway from one cell to another |
front 22 Tight Junction | back 22 Seal cells together so nothing gets between |
front 23 Desomosomes | back 23 Anchor cells to other cells or underlying basement membrane |
front 24 Passive Transport | back 24 A. Simple diffusion- Solute molecules/atoms spread out to establish equilibrium B. Facilitated diffusion- Charged, polar, or larger molecules. Requires a channel protein (door) to cross membrane C. Osmosis- Type of facilitated diffusion in which water is moved from high to low concentration |
front 25 Active Transport | back 25 A. Moves solute against gradient (low to high concentration) B. Requires carrier protein C. Requires energy |
front 26 Hypertonic | back 26 Higher solute (salt) conc than normal cell (Water moves away from cell, shrinks |
front 27 Hypotonic | back 27 Lower salt conc than normal cell (Water moves into cell) (Cell may rupture) |
front 28 Isotonic | back 28 Same salt conc as normal cell (Water moves in and out of cell equally; is at equilibrium) |
front 29 Endo/Exocytosis | back 29 Movement of larger particles in and out of the cell via membrane vesicles |
front 30 Interphase | back 30 Most of cell"s life, resting 3 stages G1- growth, S (synthesis) copies genetic material in prep for diviosion G2- continues prep |
front 31 Prophase | back 31 Chromatin condenses into chromosomes (23 pairs in humans) |
front 32 Metaphase | back 32
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front 33 Anaphase | back 33 Spindles separate chromosomes and begin to move toward each pole |
front 34 Telophase | back 34
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front 35 Mitosis | back 35 The process where a single cell divides resulting in generally two identical cells, each containing the same number of chromosomes and genetic content as that of the original cell. |