Biochemistry - Oxidative Phosphorylation - Discussion

Discussion Forum : Oxidative Phosphorylation - Section 1 (Q.No. 8)
8.
How many CO2 molecules are exhaled for each O2 molecule utilized in cellular respiration?
1
3
6
12
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
2 comments Page 1 of 1.

Wisam said:   7 years ago
Simply you can get the answer by knowing that oxidation no of carbon in a bioorganic molecule is -4 while in CO2 is +4 which mean there is 8 e lost. i.e. 4 for each O atom in O2 molecule.

These four electrons transferred from glucose through its aerobic oxidation to last acceptor the oxygen (passed through TCA and electron transport chain.

Trafton said:   9 years ago
This is highly dependent on the state of the organism. This describing RER (CO2/O2) during periods of high glycolysis, RER = 1; during sedentary and moderate workloads 0 < RER < 1.

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