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A Golgi apparatus

A Golgi apparatus - are one of the newest organelles...

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Golgi apparatus  (  Golgi complex  or  Golgi body ) is a group of flattened sacs arranged like a  stack of bowls. They function to modify and package proteins and lipids into  vesicles,  small,  spherically shaped sacs that bud from the ends of a Golgi apparatus. Vesicles often migrate to  and merge with the plasma membrane, releasing their contents outside of the cell.  Lysosomes  are vesicles from a Golgi apparatus that contain digestive enzymes. They break  down food, cellular debris, and foreign invaders such as bacteria.  Mitochondria  carry out aerobic respiration, a process in which energy (in the form of ATP) is  obtained from carbohydrates. The mitochondria can also produce energy from  noncarbohydrate sources such as fats.  Ribosomes  carry out the process of producing protein.  Vaults
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Unformatted text preview: are one of the newest organelles discovered. It appears they function to transport messenger RNA through the cytosol to the ribosomes. They seem to also be involved in developing drug resistance. • Microtubules, intermediate filaments, and microfilaments are three protein fibers of decreasing diameter, respectively. All are involved in establishing the shape or movements of the cytoskeleton, the internal structure of the cell. Microtubules are made of the protein tubulin and provide support and mobility for cellular activities. They are found in the spindle apparatus (which guides the movement of chromosomes during cell division) and in flagella and cilia (described later in this list), which project from the plasma membrane to provide motility to the cell....
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