Sunday, November 1, 2020
Mitochondrial Health

Learn Biology: Cells—Mitochondria

Mahalo biology expert
Mary Poffenroth tells you about the mitochondria in our cells.


Mitochondria are the powerhouses of the cell, generating most of the cell’s energy supply. Within the cell’s mitochondria, the food we eat gets turned into energy that we use. That energy is ATP, or adenosine triphosphate, which transports chemical energy within cells. Mitochondria are found in almost all eukaryotic cells.c

Under the Microscope

Mitochondria have an outer membrane and an inner membrane with many inner foldings called crystae. Mitochondria also assist with cell growth, cell cycle and cellular death. They even have their own DNA, which is evolutionary evidence that mitochondria and chloroplast were once prokaryotic organisms in the distant past.c

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27 thoughts on “Learn Biology: Cells—Mitochondria
  1. Hi Mary,
    Do you think you could include the meaning/etymology of the words? Why did scientist chose them and what is the Latin or Greek meaning behind them? I find it easier to remember and understand the science words when I learn their etymology. Thanks in advance.

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