1. AEROBIC Cellular Respiration

2. Let’s look at the process of cellular respiration in general
Draw this in your notebook.
What must be present for aerobic cellular respiration to occur?
Carbohydrates (sugars & starches)
Oxygen
oxygen
Draw these into your diagram.
carbohydrates

3. Let’s look at the process of cellular respiration in general
What is produced during aerobic cellular respiration?
Carbon dioxide
Water
Energy (ATP)
Carbon dioxide
oxygen
Water
Draw these into
your diagram.
Energy
carbohydrates

4. Use your diagram to write the chemical equation for Aerobic cellular Respiration.
Reactants Products
What goes in What is made
O2 +C6H12O6
CO2 +H2O+energy

5. How do the Carbohydrates break down?
Just as photosynthesis uses the structure of the chloroplast to facilitate the process, cellular respiration uses the structure of an organelle called the MITOCHONDRIA.
Chemical reactions occur inside the cells!
Where?
In the MITOCHONDRIA

6. A process called glycolysis breaks the 6 carbon glucose into two 3 carbon pyruvates.
Cell Membrane
glucose
GLYCOLYSIS
pyruvate
2 ATP
Cytoplasm
Mitochondria

7. THE PYRUVATES ENTER THE KREB’S CYCLE
IN THE MITOCHONDRIA
A.K.A. Citric Acid Cycle
Cell Membrane
glucose
GLYCOLYSIS
pyruvate
Kreb’s Cycle
CO2
2 ATP
Cytoplasm
2 ATP
Mitochondria

8. ELECTRON TRANSPORT CHAIN ACROSS INNER MEMBRANES OF MITOCHONDRIA
Cell Membrane
glucose
Kreb’s Cycle
GLYCOLYSIS
pyruvate
CO2
ELECTRON TRANSPORT CHAIN
H2O
2 ATP
Cytoplasm
2 ATP
32 ATP
Mitochondria

9. WHAT IS ATP???
ATP (adenosine triphosphate) – a nucleotide with two extra energy-storing phosphate groups.
Water + ATP → ADP + P + Energy
How cells release energy from ATP: By releasing a phosphate group, the energy stored between the two can now be released.
Notice negative
charges – requires
energy to hold
together

10. SUMMARY: Stages of Aerobic Cellular Respiration
There are “3” stages in aerobic cellular respiration:
Glycolysis - Breakdown of Glucose
Kreb’s cycle aka Citric Acid Cycle
Electron transport chain- Production of ATP

11. SUMMARY Stages of Aerobic Cellular Respiration
According to the equation, what is the energy source?
Glucose (C6H12O6) – primary fuel for cellular respiration
Where does the carbon dioxide come from?
Breakdown of glucose
How many molecules of water are created? 6
The oxygen on the reactant side forms which molecule on the product side?
Water (H2O)

12. Summary Chemical Equation for Cellular Respiration
Stage of cellular respiration
Energy going into the stage
What is happening to the energy
Energy going out of the stage
Glycolysis
Krebs Cycle
Electron Transport Chain
Chemical Equation for Cellular Respiration