A&P CH3 key terms Word Scramble
|
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Term | Definition |
active transport | process that requires an expenditure of energy to move a substance across a cell membrane, usually moved against the concentration gradient |
apoptosis | the death of cells that occurs as a normal and controlled part of an organism's growth or development. |
cell membrane | the selectively permeable outer boundary of a cell consisting of a phospholipid bilayer embedded with proteins, plasma membrane or cytoplasmic membrane |
centrosome | cellular organelle consisting of two centrioles |
chromosome | rod-like structure that condenses from chromatin in a cell’s nucleus during mitosis |
cytoplasm | the contents of a cell, excluding the nucleus and cell membrane |
cytoskeleton | a microscopic network of protein filaments and tubules in the cytoplasm of many living cells, giving them shape and coherence |
differentiation | cell specialization |
diffusion | random movement of molecules from a region of higher concentration toward one of lower concentration |
endocytosis | process by which a cell membrane envelops a substance and draws it into the cell in a vesicle |
endoplasmic reticulum | organelle composed of a system of connected membranous tubules and vesicles along which protein is synthesized |
equilibrium | a state of balance between two opposing forces |
exocytosis | transport of substances out of a cell in vesicles |
facilitated diffusion | diffusion in which carrier molecules transport substances across membranes from a region of higher concentration to a region of lower concentration |
filtration | movement of material through a membrane as a result of hydrostatic pressure |
Golgi apparatus | an organelle that prepares cellular products for secretion |
lysosome | organelle that contains digestive enzymes |
mitochondrion | organelle housing enzymes that catalyze reactions of aerobic respiration |
mitosis | diffusion of a somatic cell to form two genetically identical cells |
nucleolus | a small structure within the cell nucleus that contains RNA and proteins |
nucleus | a cellular organelle enclosed by a double-layered, porous membrane and containing DNA; the dense core of an atom composed of protons and neutrons |
organelle | a part of a cell that performs a specialized function |
osmosis | diffusion of water through a selectively permeable membrane in response to a concentration gradient |
phagocytosis | process by which a cell engulfs and digests solid substances |
pinocytosis | process by which a cell engulfs droplets of fluids from its surroundings |
ribosome | organelle composed of RNA and protein that is a structural support for protein synthesis |
selectively permeable | a membrane that allows some molecules through but not others; semipermeable |
vesicle | membranous cytoplasmic sac formed by infolding of the cell membrane |
Created by:
djhockett5
Popular Biology sets