write a note on the structure of mitochondria & explain why is it known as the power house of the cell?
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mitochondria is known as power house of the cell because in that ATP is present adenosene triphosphate which give power to the whole cell
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Structure of Mitochondria:-
→The mitochondria are usually sausage-shaped, but may be spherical, oval, cylindrical, filamentous or even branched.
→The mitochondria are 1-5 μm in diameter.
→There may be a few to over 1000 mitochondria per cell.
→Under the light microscope, the mitochondria are seen as small spheres or short rods
→Electron microscope shows them as vesicles bounded by an envelope of two unit membranes and filled with a fluid matrix.
→Both the membranes resemble the cell membrane in structure. However, they are slightly thinner than the membrane. Each membrane is composed of two layers of phospholipid molecules sandwiched b/w two layers of protein molecules .
Mitochondria are main seat of cell respiration. They bring about stepwise oxidation of food stuffs or "low-grade" fuel of cell and transfer the energy, so released, to the energy carrier ATP, the "high-grade" fuel of the cell. ATP is used to bring about energy-requiring activities in the cell. On this account, the mitochondria are often described as the "power-houses", or "storage batteries", or "ATP mills" of the cell
→The mitochondria are usually sausage-shaped, but may be spherical, oval, cylindrical, filamentous or even branched.
→The mitochondria are 1-5 μm in diameter.
→There may be a few to over 1000 mitochondria per cell.
→Under the light microscope, the mitochondria are seen as small spheres or short rods
→Electron microscope shows them as vesicles bounded by an envelope of two unit membranes and filled with a fluid matrix.
→Both the membranes resemble the cell membrane in structure. However, they are slightly thinner than the membrane. Each membrane is composed of two layers of phospholipid molecules sandwiched b/w two layers of protein molecules .
Mitochondria are main seat of cell respiration. They bring about stepwise oxidation of food stuffs or "low-grade" fuel of cell and transfer the energy, so released, to the energy carrier ATP, the "high-grade" fuel of the cell. ATP is used to bring about energy-requiring activities in the cell. On this account, the mitochondria are often described as the "power-houses", or "storage batteries", or "ATP mills" of the cell
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