Tamil Nadu Board of Secondary EducationSSLC (English Medium) Class 10th
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Structure of a Cell - Mitochondria - “Power House of the Cell”

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notes

Mitochondria:

  • Mitochondria are known as the powerhouses of the cell.

  • It has 2 coverings. The outer membrane is porous while the inner membrane is deeply folded

  • These folds increase surface area for ATP generating chemical reactions. The energy required for various chemical activities needed for life is released by mitochondria in the form of ATP molecules.

  • They have their own DNA and ribosomes. Therefore, mitochondria are able to make some of their own proteins.

  • ATP (Adenosine triphosphate): ATP is known as the energy currency of the cell. The body uses energy stored in ATP for making new chemical compounds and for mechanical work.

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