1. AP BIOLOGY Chapter 9 RESPIRATION What’s next?

2. Where will the pyruvic acid go next if oxygen is present?
Where will the NADH
produced in this
reaction go next
if oxygen is
present?
Where will the pyruvic acid go next if oxygen is present?
To electron transport chain
Into mitochondria and Krebs cycle

3. Where will the pyruvic acid go next if oxygen is NOT present?
Where does this
reaction happen?
Where will the pyruvic acid go next if oxygen is NOT present?
In the cytoplasm
Stays in cytoplasm and does fermentation

4. Where will the pyruvic acid go next if oxygen is NOT present?
Where does this
Reaction happen?
Where will the pyruvic acid go next if oxygen is NOT present?
In the cytoplasm
Stays in cytoplasm and does fermentation

5. Name the 4 carbon molecule that will pick up the two carbons from acetyl CoA in this reaction
OAA- oxaloacetic acid

6. Released into atmosphere when we exhale What happens to the
CO2 produced in this
reaction?
The 2 carbons from Acetyl-CoA
will join next with a
4 carbon molecule to make __________
Released into
atmosphere when
we exhale
Citric acid

7. Cycle through the Krebs cycle
Where will the citric acid that is produced here go next?
What will happen to the C’s in citric acid that came from Acetyl-CoA?
Cycle through the Krebs cycle
Released into atmosphere as CO2

8. Where does the ATP produced here go? to the Electron transport chain
the FADH2
produced
here go next?
Where does the ATP produced
here go?
to the Electron
transport chain
Used by cell for
cellular activities

9. To electron transport What happens to the NADH produced in this
reaction?
Where did the carbons in pyruvic acid
come from?
To electron transport
Break down of glucose during glycolysis

10. Name the
4 products
of the Krebs cycle
CO2, NADH, FADH2, ATP

11. Citric acid Name the 6 carbon molecule formed in this reaction
What happens to the Coenzyme A
after dropping off its 2 carbons?
Citric acid
Recycles back and picks up 2 more
carbons from pyruvic acid

12. Where does
the CO2
produced
here go next?
released to
the atmosphere

13. Citric acid Name the 6 carbon molecule formed in this reaction
What happens to the Coenzyme A
after dropping off its 2 carbons?
Citric acid
Recycles back and picks up 2 more
carbons from pyruvic acid