Date: December 2004
Some microbiologists would say that the existence of life
on this planet relies on the relationship between mitochondra and
chloroplasts. could you please explain why they think this?
I would say because photosynthesis (which provides oxygen) happens in
chloroplasts (and also (but also photosynthetic bacteria) and
takes place in mitochondria. But that is the simple answer.
The chloroplast is where energy from sunlight is first incorporated into
the chemical bonds
of glucose. Mitochondria are where most of the energy inherent in the
chemical bonds of
glucose is converted to ATP by means of the electron transport chain. The
resulting ATP is
used to drive all synthetic reactions in all cells.
Ron Baker, Ph.D.
Click here to return to the Molecular Biology Archives
Update: June 2012