Question

Complete the table below as if you were going to use it as a study aid. Assume all values are per 1 molecule of glucose that begins the cellular respiration pathway. 

Stage	Location	Start Molecule(s)	End Molecule(s)	ATP Produced	ATP Used	NADH Produced	FADH2 Produced	CO2 Produced
Glycolysis Energy Investment		Glucose
Glycolysis Energy Payoff		2 G3P
Oxidation of Pyruvate
Citric Acid Cycle	Mitochondria Matrix
Oxidative Phosphorylation		10 NADP 2 FADH2	ATP O2		0
Total

Answer 1

Glycolysis

In the investment phase where energy as ATP is put in, total of 2 ATP is used

In the payoff phase where net ATP and NADH molecules are created,  a total of 4 ATP is made and 2 NADH.

Net production - 2 ATP and 2 NADH.

Oxidation of pyruvate

During conversion of pyruvate to acetyl CoA, each pyruvate molecule produce 1 NADH, loses one carbon atom with the release of carbon dioxide.

But 1 molecule of glucose produces 2 pyruvate.. so a total of 2 NADH and 2 CO₂ produced here.

Citric acid cycle

1 molecule of glucose produces 2 pyruvate. So through two rounds of the citric acid cycle this generates 6 NADH, 2 FADH₂, and 2 ATP. CO₂ is produced in 2 steps. So a total of 4 CO₂

Oxidative Phosphorylation

Oxidative phosphorylation is the process in which ATP is formed as a result of the transfer of electrons from NADH or FADH₂ to O ₂ by a series of electron carriers. Oxidative phosphorylation produces total of 34 ATP from 10 NADH and 2 FADH₂. [ when 1 NADH produces 3 ATP and 1 FADH₂. produces 2 ATP]

The final answer becomes :-

So 1 molecule of glucose that enters the cellular respiration pathway produces a total of 38 ATP molecules [40 - 2 used in glycolysis] , and 6 CO₂