How Cells Obtain Energy
Introduction and ATP
An organism uses its entire energy budget at the __________________ level. An example
of this is the fact that nearly a half of a cells energy output is spent on ____________ ______________. Cell
__________________ also require energy. The kind of energy cells use is __________________ energy. The
source of this energy is found in the molecule ______. Energy is released by ___________ the bond releasing
the end ___________. What is left is __________. ADP can be __________ to ATP using the energy from the
______________ we eat. This recharging process takes place in the mitochondria of our cells. This extraction
of energy from food and synthesis of ATP is called Cellular Respiration.
Mitochondria and Cellular Respiration (making ATP)
All nucleated cells (cells with a nucleus—eukaryotes) contain __________________ the site where _____is
produced.
Oxygen makes the process of ATP production more efficient. Without oxygen the cell can make only ____ ATP
molecules. With oxygen the cell can make _____ molecules of ATP from every sugar molecule.
1.
2.
3.
4.
___________ IN
Burn _______________
Make _________
_________ OUT
Photosynthesis
Photosynthesis it the way plants make their fuel molecules to feed their _________________.
The chloroplast contains stacks of hollow disks called thylakoids.
These are covered by a carpet of __________________ molecules
where ______________ energy is converted into _______________
energy.
Photosynthesis Summarized:
1.
Light reactions: ______ is made using energy absorbed
from the sun.
2. Light-independent reactions: ____ is coupled with other
carbon chains using energy from ATP to make ____________
The cells 2 energy producing organelles _________________ & _________________ feed on the waste products of
each other. ____ given off by mitochondria is what chloroplasts need to build ______________. The
________________ released by chloroplast during the light reactions is exactly what the mitochondria need to
make it possible for ATP synthase to add the 3 phosphate to _______ creating ________ which is the universal
energy carrier.