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Bio chapter 6
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-region where the cells microtubules are initiated
-contains a pair of centrioles


centrosome


-network of membraneous sacs and tubes
-active in membrane synthesis and other synthetic and metabolic processes


endoplasmic recticulum


-double membrane enclosing the nucleus
-perforated by pores continuous with ER


nuclear envelope


-nonmembraneous structure involved in production of ribosomes
- a nucleus has one or more nucleoli


nucleolus


-material consisting of DNA and proteins
-visible in a dividing cell as individual condensed chromosomes


chromatin


membrane enclosing the cell


plasma membrane


-complexes that make proteins
-free in cytosol or bound to rough ER or nuclear envelope


ribosomes


organelle active in synthesis modification sorting and secretion of cell products


Golgi apparatus


digestive organelles where micro molecules are hydrolyzed


lysosome


organelle where cellular respiration occurs and most ATP is generated


mitochondria


-organelle with various specialized metabolic functions
-produces hydrogen peroxide as a by product then converts it to water


peroxisome


-prominent organelle in older cell plans
-functions include storage breakdown of waste products hydrolysis of macromolecules
-enlargement of vacuole is a major mechanism of the plant growth


central vacuole


-photosynthetic organelle
-converts energy of sunlight to chemical energy stored in sugar molecules


chloroplast


cytoplasmic channels through the cell walls that connect the cytoplasm of the adjacent cells


plasmodesmata


-outer layer that maintains cell shape and protect yourself from mechanical damage
-made of cellulose and other polysaccharides and protein


cell wall