Endoplasmic reticulum(ER): network of membranous sacs and tubes; actuve in membrane synthesis and other synthetic and metabolic processes; has rough (ribosome-studded) and smooth regions.
Nucleus:
nuclear envelope: double membrane enclosing the nucleus; perforated by pores; continuous with ER
Nucleolus: nonmembranous organelle involved in production of ribosomes; a nucleus has one or more nucleoli.
Chromation: material consisting of DNA and proteins; visible as individual chromosomes in a dividing cell.
Plasma membrane: membrane enclosing the cell
Ribosomes: nonmembranous organelles (small brown dots) that make proteins; free in cytoplasm or bound to rough ER or nuclear envelope
Golgi apparatus: organelle active in synthesis, modification, sorting, and secretion of cell production
Lysosome: digestive organelle where macromolecules are hydrolyzed
Mitochondrion: organelle where cellular respiration occurs and most ATP is generated
Peroxisome: organelle with various specialized metabolic functions; produces hydrogen peroxide
Microvilli: projections that increase the cell's surface area
Cytoskeleton: reinforces cell's shape, functions in cell movement; components are made of protein. Cytoskeleton consisting of microfilaments, intermediate filaments and microtubles.
Centrosome: region where the cell's microtubles are initiated; in an animal cell, contains a pair of cetrioles (function unknown)
Flagellum: locomotion organelle present in some animal cells; composed of membrane enclosed microtubles
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