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The Eukaryotic cell structure - Assignment Example

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Amongst these, the mitochondria are usually referred as the cell’s power houses while the ribosomes are referred as the cell’s protein manufacturing plants. The mitochondria are…
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The Eukaryotic cell structure
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Download file to see previous pages The size of mitochondrion is very small while it is much greater than that of ribosomes that appear like small granules either floating within the cytosol or associated with the endoplasmic reticulum. The number of mitochondria within a cell varies depending upon the cell type and the amount of energy required to perform their work, as there may be numerous mitochondria within muscular cells than that in nerve cells. Mitochondria are very small organelles. Moreover new mitochondria can be developed within the cell in case if the energy requirement of the cell remains unfulfilled with the already functioning mitochondria. Ribosomes are single membrane organelles while mitochondria in contrast to other organelles possess double layers. The external membrane serves as the protective covering of the organelle while the inner one is found in folded form. The folding of the internal membrane enhances the surface area within mitochondria as it serves as the site where various chemical reactions occur. This heightened surface area permits the mitochondria to perform as many tasks as possible. Such a similar strategy is adopted in the small intestines by microvilli. The folding of the mitochondria’s internal membrane is referred as cristae while the fluid within the mitochondria is known as matrix (Simon, Reece and Dickey, 2009).
Ribosomes on the other hand are composed of proteins and RNA and basically perform the task of assembling cellular proteins. Similar to the mitochondria, their number also varies within as cell depending upon the cell’s production level of proteins. Ribosomes usually consist of two subunits amongst which one is larger while one is smaller in size. These subunits are prepared by the nucleolus and they connect together as a ribosome gets attached to mRNA (messenger Ribonucleic Acid) during the ...Download file to see next pagesRead More
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