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Briefly describe Mitochondria.

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Mitochondria are called as the powerhouse of the cell. It has a double membrane, and it is called semi-autonomous organelle because of the ability to make protein.
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Fresh IIT Delhi Graduate with deep understanding of PCMB

Mitochondria is the energy house of the cell present in all eukaryotic organisms. It is involved in tasks such as signalling, cellular differentiation, and cell death, as well as maintaining control of the cell cycle and cell growth.
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It's called as 'The power house of a cell'
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Mitochondria are known as the powerhouse of the cell. They are organelles that act like a digestive system which takes in nutrients, breaks them down, and create energy-abundant molecules for the battery. The biochemical process of the cell is known as cellular respiration.
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Mitochondria is the cell organelle having double-membrane structure outer membrane is porous, and the inner layer is enfolded to form cristae. It is known powerhouse of the cell because it is the site of ATP synthesis, which is the source of energy. It also contains ribosomes and DNA.
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Mitochondria is the powerhouse of the cell. It is also known as the energy currency of the cell. It is a double membrane structure. Consist of an outer layer and an inner layer called cristae. It releases energy in the form of ATP(adenosine triphosphate).
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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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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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Mitochondria is the power house of cell and provide energy in form of ATP. It has a unique DNA which we recieve only from our respective mother.
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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,...
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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.

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The mitochondrion is a double-membrane-bound organelle found in most eukaryotic organisms. Some cells in some multicellular organisms may, however, lack them.
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