1. Krebs (Citric Acid) Cycle
Do Now:
30 kJ of energy is released when 1 mol of ATP is broken down into ADP.
1 mol of glucose contains 2870 kJ of chemical energy.
If aerobic respiration produces 36 mol of ATP per mol of glucose, what % of the energy stored in glucose is a cell getting from the glucose it consumes?
Now, do the same calculation for Anaerobic respiration.

2. ATP = Energy
The phosphate-phosphate bond broken when ATP  ADP + Pi releases 30 kJ/mol of energy.

3. Solution 36 mol ATP x 30 kJ/mol = 1080 kJ 1080 kJ / 2870 kJ = 38%
In other words, aerobic respiration is about 38% efficient at getting energy from glucose into a useable form.
Glycolysis?

4. Aerobic Respiration 4 main steps:
Glycolysis splits sugar into 2 pyruvate molecules
Krebs Cycle “burns” pyruvate to make energy + CO2
E- trans. Chain &
4. Chemiosmosis in mitochondria produces MANY MANY ATP

5. Glycolysis
Summarize…

9. Recap
What are the products of the Krebs Cycle per glucose?