Chemical Energy and ATP

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Chemical Energy and ATP
• ATP (Adenosine Triphosphate) is a molecule
that transfers energy from the breakdown of
food molecules to cell processes.
• ATP is produced in the mitochondria
• ATP is like a wallet. Just as a wallet carries
money you can spend, ATP carries energy that
cells can use.
Photosynthesis
• A process that captures energy from sunlight
to make chemical energy in the form of
sugars.
• Chlorophyll is a molecule in chloroplasts that
absorbs energy in visible light.
Overview
Photosynthesis Formula
• How would this be written as a chemical
equation?
• What goes in? (the reactants)
• What comes out? (the products)
H2O
H2O
CO2
Chloroplasts
chlorophyll
C6H12O6
O2
C6H12O6
Photosynthesis Review
• What goes in? (the reactants)
• What comes out? (the products)
light
6CO2 + 6H2O
H2O
chlorophyll
6O2 + C6H12O6
Chloroplasts
chlorophyll
• Light and Chlorophyll are needed for
the reaction to take place, but are not part of the formula
C6H12O6
Cell Respiration
• Cell respiration
releases chemical
energy from sugars
to make ATP. This
occurs in the
mitochondria.
• Cellular respiration is
Aerobic-it need
oxygen to take place.
Glycolysis
• Breaks down glucose
so that it can pass
through the
mitochondrial
membrane.
• Glycolysis takes place
in the cytoplasm.
• Glycolysis is
anaerobic-does not
need oxygen.
Cell Respiration Formula
Photosynthesis/Respiration
Chloroplast/Mitochondria
Chloroplast
Chloroplast
Mitochondria
Mitochondria
Process
Process
Photosynthesis
Cell Respiration
Reactants
CO2 and H2O
C6H12O6 and O2
Products
C6H12O6 and O2
CO2 , H2O and energy
(ATP)
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