Essay of Eukaryotic Organelles 10/1/96

Essay of Eukaryotic Organelles10/1/96The mitochondria has an eggshape structure. The mitochondria consists ofan inner and outer membrane. The outer membrane is what shapes theorganelle to its egglike shape.The inner membrane which folds inwardmakes a set of “shelves” or cristae that allow the reactions of themitochondria to take place. The more the mitochondria makes these reactionsthe more the inner membrane folds.

This happens because the mitochondrianow has more surface area connecting it to its surroundings. The processesthat the mitochondria make are to break down the high energy organicmolecules into smaller more useful packages.The endoplasmic reticulum is a network of tubes and channels thattransport and with the help of ribosomes produce proteins. The roughendoplasmic reticulum contains ribosomes which are not present in thesmooth endoplasmic reticulum.

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The rough endoplasmic reticulum allows thecell to produce proteins. The smooth endoplasmic reticulum is used in thedetoxification processes in the cell and the transitional endoplasmicreticulum is used to breakdown glycogen to glucose. The endoplasmicreticulum is versatile and grows and shrinks according to the cell’sactivities. Chloroplasts which are found in plant cells are used in the process ofphotosynthesis. They fall into the category of plastids but they aredifferentiated in that they contain chlorophyll.

These organelles producechemical reactions from the energy that the sun gives them. The Golgi complex’s structure is made up of many flattened membranes sacsthat are surrounded by tubules or vesicles. These are called thecisternae. The golgi complex accepts vesicles from the endoplasmicreticulum and modifies them for usage in the cell. The golgi complex isused to distribute materials which help form the cell membranes. They alsoassemble the membranous material by producing glycolipids andglycoproteins.

The golgi complexes also hand their vesicles materials forsecretion. The golgi complex could not do its job without the help ofvesicles. Vesicles bring and send the organelle its materials.