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Aerobic Cell Respiration - Review. Luxi Nanthakumar, Andy Rambarack. What is it?. C 6 H 12 O 6 + 6O 2  6H 2 O + 6CO 2 + 36 ATP Glucose + Oxygen  Water + Carbon Dioxide Metabolic reactions to convert nutrients into energy. Why is it important?. We eat glucose

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Aerobic cell respiration review

Aerobic Cell Respiration - Review

Luxi Nanthakumar,

Andy Rambarack


What is it
What is it?

  • C6H12O6 + 6O2 6H2O + 6CO2 + 36 ATP

  • Glucose + Oxygen  Water + Carbon Dioxide

  • Metabolic reactions to convert nutrients into energy


Why is it important
Why is it important?

  • We eat glucose

  • Energy in the form of ATP is produced

  • Necessary for life


How does it work
How does it work?

  • When we breathe air in…



How does it work1
How does it work?

  • When we eat food…



In the cytoplasm
In the cytoplasm…

  • 6-carbon glucose is phosphorylated using ATP which turns into ADP

ADP

ADP

ATP

ATP

P

P










Transition step in mitochondria
Transition step in mitochondria diphosphate

  • Pyruvate is oxidized by NAD+

NADH

NADH

NAD+

NAD+



Coenzyme-A transports the Acetyl-CoA to the matrix


In the mitochondrial matrix
In the mitochondrial matrix diphosphate

  • The 2-carbon chain connects to a 4-carbon molecule (oxaloacetate), making a 6-carbon chain (citrate)

Coenzyme-A returns to pyruvate oxidation


In the krebs cycle
In the Krebs cycle diphosphate

  • Citrate is oxidized … twice!

  • Producing CO2 … twice!

NAD+

NADH

CO2


NAD+

NADH

CO2



NAD+

NADH

FAD

FADH2



Krebs cycle repeats
Krebs cycle repeats diphosphate

  • Because there were two pyruvate molecules


In the inner membrane of the mitochondria
In the Inner Membrane of the mitochondria… diphosphate

  • Electrons from NADH pass through 3 proteins

Protein

Complex

II

Protein

Complex

I

Protein

Complex

III

NADH


Protein

Complex

II

Protein

Complex

I

Protein

Complex

III

FADH2


H+

H+

H+

H+

H+

Protein

Complex


H+

H+

H+

H+

H+

ATP

Synthase

Protein

Complex


H+

ATP

Synthase

ATP

O2

H2O


Remember co 2 and h 2 o
Remember CO inter-membrane space2 and H2O?

CO2

H2O

and are products

of cellular respiration

They are expelled from the body as waste


Atp accounting
ATP Accounting inter-membrane space

  • During glycolysis, 2 ATP molecules are used to phosphorylate glucose

  • Because the NADH molecules from glycolysis must enter the mitochondria from outside, it requires 1 ATP molecule each


Now build your own
Now build your own! inter-membrane space


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