Question

1) How many ATP are produced from NADH of the Kreb’s cycle? 18 2 3 6...

1) How many ATP are produced from NADH of the Kreb’s cycle?

18

2

3

6

4

2) Which part(s) of cellular respiration produces CO2, ATP, and NADH?

Conversion of 5C to 4 C molecule

Conversion of 6C to 5C molecule

Conversion of 4C to 4C molecule

Conversion of pyruvate to acetyl CoA

Two of the given answers are correct

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Homework Answers

Answer #1

Q1. 18 ATP

There is two turns of krebs cycle per glucose molecule. Each cycle produce 3 NADH. Therefore total 6 NADH glucose per glucose molecule (. 2 turns of krebs cycle)

One NADH gives 3 ATP

Total ATP = 6 × 3 = 18 ATP

Q2. conversion of 5C to 4C molecule

That is when -ketoglutaric acid (5C) is converted to succinic acid (4C) NADH, CO2 and ATP are produced.

In the conversion of 6C to 5C NADH and CO2 are produced, no ATP

In conversion of 4C to 4C NADH, FADH are produced no ATP and CO2.

In the conversion of pyruvate to acetylCoA NADH and CO2 are produced , no ATP

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