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Question

Main function of mitochondria in a cell is
  1. Respiration
  2. Secretion
  3. Excretion
  4. Osmoregulation

A
Respiration
B
Excretion
C
Osmoregulation
D
Secretion
Solution
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  • The mitochondria is a double-membraned cell organelle, known as the powerhouse of the cell which is present in all eukaryotic cells.
  • It has an outer membrane and an inner membrane.
  • The inner mitochondrial membrane has folds called cristae which helps in increasing the surface area.
  • The inner membrane of the mitochondria is the site of the electron transport chain (aerobic respiration).
  • So, the correct answer is 'Respiration'.

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