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←Teach me about Mitochondria
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🧬 Learning outcomes for these notes

By the end of this set of notes, you will be able to:

  • describe what mitochondria are and where they are found
  • explain why mitochondria are often called the 'powerhouses' of the cell
  • outline the key structural features that make mitochondria suited to energy production
  • connect mitochondrial function to real situations like muscle activity and inherited disease
DIAGRAMOuter membraneInner membraneCristaeMatrixStructure of a mitochondrion
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Why are mitochondria called the powerhouses of the cell?
Because they make most of the cell's ATP through respiration, the energy your cells run on.
Why does muscle have so many?
Muscle cells need a lot of ATP to contract, so they pack in more mitochondria to keep up.
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Where does the electron transport chain occur in the mitochondrion?
WhyThe electron transport chain sits in the inner membrane, whose folds give it a large surface area.
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Explain why a defect in mitochondria might be expected to affect muscle cells more severely than many other cell types, based on the material you have studied.
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Good start. You linked ATP supply to muscle demand.

Worth adding

• Muscle cells hold more mitochondria, so a defect cuts their energy supply first.

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Why are mitochondria called the “powerhouses” of the cell?
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The Krebs cycle runs in the matrixMost ATP comes from the inner membraneCristae add surface area

Teach me about Mitochondria

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