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
They are made of two membranes. The outer membrane covers the organelle and contains it like a skin. The inner membrane folds over many times and creates layered structures called cristae. The fluid contained in the mitochondria is called the matrix.
Mitochondria are tiny organelles inside cells that are involved in releasing energy from food. This process is known as cellular respiration. It is for this reason that mitochondria are often referred to as the powerhouses of the cell. ... This process is known as cellular respiration.
They are made of two membranes. The outer membrane covers the organelle and contains it like a skin. The inner membrane folds over many times and creates layered structures called cristae. The fluid contained in the mitochondria is called the matrix.
Mitochondria are tiny organelles inside cells that are involved in releasing energy from food. This process is known as cellular respiration. It is for this reason that mitochondria are often referred to as the powerhouses of the cell. ... This process is known as cellular respiration.
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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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