The Plasma Membrane-A Cell's Protective Coat Important among these is the presence of a nucleus, a membrane-delineated compartment that houses the Specialized structures called organelles that are dedicated to performing certain specific functions. Prokaryotes and eukaryotes is that eukaryotic cells contain membrane-boundedĬompartments in which specific metabolic activities take place, and have small The major and extremely significant difference between Most of the functions of organelles, suchĪs mitochondria and the Golgi apparatus, are taken over by the prokaryoticĪbout 10 times the size of a prokaryote and can be as much as 1000 times Prokaryotes are capable of inhabiting almost every place on theĮarth, from the deep ocean, to the edges of hot springs, to just about everyĪlso lack any of the intracellular organelles and structures that areĬharacteristic of eukaryotic cells. There are two general categories of cells: prokaryotes and eukaryotes. It is important to know what organism the cell comes from. Is that each cell stores its own set of instructions for carrying out each of Other organisms, such as humans, are multicellular, or have many cells-an estimated 100,000,000,000,000Ĭells! Each cell can take in nutrients, convert these nutrients into energy,Ĭarry out specialized functions, and reproduce as necessary. Some organisms, such asĬonsisting of a single cell. Structural and functional unit of all living organisms.
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