Zusammenfassung der Ressource
6.3 How is energy transformed within cells?
- Glucose is the energy provider. Energy
from glucose is transferred to
energy-carrier molecules.
- Energy-carrier molecules are high-energy
molecules that are synthesized at the site of
an exergonic reaction.
- Like rechargable bateries.
- Energy-carrier molecules only capture
and transfer energy within cells.
- ATP adenosine triphosphate is the most common energy-carrier
the molecule in the body is produced during the breaking down of
exergonic reactions.Knowns as the energy currency of the cell.
- Most ATP is produced in the Mitochondria. Mitochondria are known as the powerhouses of the cells.
- ATP is not a long-term energy-storage molecule.
More stable molecules such as starch in plants
and glycogen and fat on animals can store
energy for a long.
- Energy is carried by electron carried molecules and
transfer their high energy electrons to other molecules
to form ATP, NADPH, FADH2.
- Coupled reactions link exergonic with
endergonic reactions.
- Exergonic reactions provide the energy needed to drive an
endergonic reaction.