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cell

biology

TermDefinition
cell theory a basic tentet of modern technology that cells are the basic units of structure and function in living organisms
cytoplasm the material or protoplasm within a living cell, excluding the nucleus
organelle any of a number of organized or specialized structures within a living cell
prokaryotic cell a cell lacking a true membrane-bound nucleus
eukaryotic cell a cell with a true nucleus; a cell with a nuclear membrane and organelles
cytoskeleton the cytoplasmic network of protein filaments that plays an essiential role in cell movement, shape, and the division
nucleus in physical sience, an atoms central region which is made up of protones and neutrons
endoplasmic reticulum a system of membranes that is found in cells cytoplasm and that assists in the prduction, proccessing, and transport of proteins andin the productions of lipids
ribosome a cell organelle composed of rna and proteins ; the cite of proteins and synthesis
golgi apparatus
vesicle a small cavity or sac that contains materials and eukaradic cell forms when part of the cell membrane sorounds tyhe materials to be take into the cell or transported within the cell
mitochondrion an eukarodic cell, the cell organell that is sourned by too membranes and that is the cite of cellular and resperation, which rpduces atp
vacuole a fluid filled vecule found in the sitoplasm of plant cells or protosomes
lysosome a cell organell that contains conjestive enzymes
centriole an organelle that is active during mitososes
cell wall a riged structure that sourounds the cell membrane and provides support to the cell
chloroplast an orgenell found in plant and alegy cells were photosynthesis accures
cell membrane a phospho lipid layer that covers a cells surface and acts like a barrier between the inside of a cell and the cells invirement
phospholipid a lipid that containes aphosphorus and that is a structual coponet in cell membrane
fluid mosaic model
selective permeability
receptor a specialised sensory nerve that responds to specific types of stimuli
passive transport the movment of substance accross a cell membraene without the use of energy by the cells
diffusion the movement of particles from regions of higher density to regions of lower density
concentration gradient
osmosis the diffusion of water or another sulvent from a more delute solution to a more consentatred through a membraene promedable to the sulvent
isotonic
hypertonic describes a sulution whos solute concentration is higher than the solute concentration inside a cell
hypotonic
facilitated diffusion the transport of substances
active transport
endocytosis
phagocytosis
exocytosis
Created by: josue308
 

 



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