ATP
&
ADP
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What Is ATP?
Energy used by all Cells
Adenosine
Triphosphate
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What Is ATP?
Organic molecule containing
high-energy Phosphate bonds
ATP is a type of nucleic acid
(like DNA and RNA).
An ATP Molecule is composed
of the following:
A
A
Nitrogenous Base – Adenine
Sugar – Ribose
Three phosphate groups
Chemical Structure of ATP
Adenine Base
3 Phosphates
Ribose Sugar
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Where does ATP come from?
 ATP
comes indirectly from
the food that we eat.
 Molecules of carbohydrates
(glucose) and lipids are broken
down through the process of
cellular respiration to produce
ATP.
What Does ATP Do for You?
It supplies YOU with
ENERGY!
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How Do We Get Energy From
ATP?
By breaking
the highenergy bonds
between the
last two
phosphates
in ATP
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What is the Process Called?
HYDROLYSIS (Adding H2O)
H 2O
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How Does That Happen?
An Enzyme!
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How is ATP Re-Made?
The reverse of the previous
process occurs.
Another Enzyme is
used!
ATP Synthetase
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The ATP-ADP Cycle
ATP
Synthetase
ATP-ase
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When is ATP Made in the
Body?
During a Process
called
Cellular Respiration
&
Photosynthesis
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