"Mitochondrion" Essays and Research Papers

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    a mitochondrion

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    A mitochondrion (Terminologia histologica: Mitochondrion) is a cell organelle of eucaryotes with ovoid shape that is the major source for intracellular energy. Mitochondria are present in all but mature red blood cells. They can migrate through the cytoplasm and change their shape. These organelles have an outer unit membrane (membrana mitochondrialis externa) and an inner membrane (membrana mitochondrialis interna). The latter has protrusions into the matrix (mitochondrial plasma). Depending on

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    Mitochondrian

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    The Mitochondrion The cell is the most basic unit of life. The cell serves as the place for processes such as cellular respiration‚ metabolism and energy production in the form of ATP‚ or adenosine triphosphate. Many organelles—small structures that help to carry out the daily operations of the cell‚ inhabit the cell such as the Golgi complex‚ the endoplasmic reticulum‚ the nucleus‚ or brain of the cell‚ and lysosomes. An organelle that is the place where most of the cell’s energy is generated is

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    cristae projecting into the matrix. a small number (some 5–10) circular molecules of DNA  This electron micrograph (courtesy of Keith R. Porter) shows a single mitochondrion from a bat pancreas cell. Note the double membrane and the way the inner membrane is folded into cristae. The dark‚ membrane-bounded objects above the mitochondrion are lysosomes. The number of mitochondria in a cell can increase by their fission (e.g. following mitosis); decrease by their fusing together. (Defects in

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    Mitochondria

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    In cell biology‚ a mitochondrion (plural mitochondria) is a membrane-enclosed organelle found in most eukaryotic cells.[1] These organelles range from 0.5 to 1.0 micrometer (μm) in diameter. Mitochondria are sometimes described as "cellular power plants" because they generate most of the cell’s supply of adenosine triphosphate (ATP)‚ used as a source of chemical energy.[2] In addition to supplying cellular energy‚ mitochondria are involved in other tasks such as signaling‚ cellular differentiation

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    mitochondria. Each mitochondrion is enclosed by two membranes separated by an intermembrane space. The intermembrane space extends into the folds of the inner membrane called cristae which dramatically increase the surface area of the inner membrane. Cristae extend into a dense material called the matrix‚ an area which contains RNA‚ DNA‚ proteins‚ ribosomes and range of solutes. This is similar to the contents of the chloroplast stroma and like the chloroplast‚ the mitochondrion is a semi-autonomous

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    Mitochondria

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    Mitochondrion (plural‚ mitochondria)‚ is found in nearly all eukaryotes. Plants‚ animals‚ fungi‚ and protists all have mitochondria. Mitochondria are large enough to be observed with a light microscope and were first discovered in the 1800s. For many years after their discovery‚ mitochondria were commonly believed to transmit hereditary information. It was not until the mid-1950s when a method for isolating the organelles intact was developed that the modern understanding of mitochondrial function

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    DESCRIBE THE STRUCTURAL COMPARTMENTATION OF MAMMALIAN CELLS AND THE DIFFERING FUNCTIONS OF THESE COMPARTMENTS All mammalian cells are eukaryotic‚ and whilst the eukaryotic type of cell is not exclusive to mammals‚ mammalian cells differ from other eukaryotic cells because of the organelles that are or are not present. For instance some plant cells have chloroplasts which are not present in mammalian cells‚ but both plant cells and mammalian cells are eukaryotic in nature. The term eukaryotic refers

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    The mitochondrion has a double membrane‚ an outer membrane and an inner membrane. The inner membrane consists of many different folds that from cristae which provide a larger surface area where reactions can occur inside the mitochondrion. The greater the surface area inside the mitochondrion is‚ the more room you have for the chemical reactions to take place. This allows more materials to be broken

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    Peluche

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    Eukaryotic cells have internal membranes that compartmentalize their functions  1. After carefully reviewing Figure 6.8‚ briefly describe the structure and function of the nucleus‚ the mitochondrion‚ the chloroplast‚ and the endoplasmic reticulum. Nucleus- nonmembranous structure involved in production of ribosomes; a nucleus has one or more nuclueoli Mitochondrion- organelle where cellular respiration occurs and most ATP is generated Chloroplast- photosynthetic organelle; converts energy of sunlight to chemical energy

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    “A human being is a whole world to a mitochondrion‚ just the way our planet is to us. But we’re much more dependent on our mitochondria than the earth is on us. The earth could get along perfectly well without people‚ but if anything happened to our mitochondria‚ we’d die.” —A Wind in the Door by Madeleine L’Engle (1973). Mitochondria are responsible for energy production in cells. The catalyst for energy in cells is adenosine triphosphate also known as ATP. The Mitochondria produce ATP by converting

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