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Prashant Pandey
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Mitochondria (singular: mitochondrion) ;the powerhouse of the cell are a double-membrane-bound organelle found in most of the eukaryotic organisms.
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Naila Rais
High School Graduate from American Academy, Charleston, SC, USA
Mitochondria is a Greek word. Mitos - thread and chondroitin - granule. (Singular: mitochondrion).
Kolliker first observed mitochondria. Later Altmann named them as Bioplasts. Finally, Benda called them Mitochondria.
Shape:
They are typically sausage-shaped. They can be cylindrical, rod, spherical, granular, filamentous or thread like also.
Size:
0.2 micron meters to 2-micron meters.
Location:
They are distributed in cytoplasm bounded by a double membrane envelope. Two membranes are separated by peri-mitochondrial space.
Membrane shape:
1) Outer membrane: smooth
2) Inner membrane: fingers like structure called cristae, which possess a small rounded body called F1 particles or Oxysomes. They help in electron transport.
The interior cavity is filled with a proteinaceous matrix containing lipids, proteins, circular DNA and RNA.
Note:
Mitochondria are absent in bacteria and the red blood cells of mammals. It is the powerhouse of the cell. It stores energy in the form of ATP.
Nafees Ahamad
Clear approach to mathematics with weaker student
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