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Asked Nov 24, 2019
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Please explain why D)[2,3,&4] is  wrong and give me the correct answer

AS) The electrons formed from the aerobic oxidation of glucose are:
1 ultimately transferred to O2 after several other transfer reactions
2. used to reduce the coenzymes NAD* and FAD
3. directly transferred to O2 during the citric acid cycle
4. transferred to lactate in eukaryotes.
A) 1 and 2
B) 2 only
C) 1 only
D) 2,3, and 4
E) 1,2, and 3
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AS) The electrons formed from the aerobic oxidation of glucose are: 1 ultimately transferred to O2 after several other transfer reactions 2. used to reduce the coenzymes NAD* and FAD 3. directly transferred to O2 during the citric acid cycle 4. transferred to lactate in eukaryotes. A) 1 and 2 B) 2 only C) 1 only D) 2,3, and 4 E) 1,2, and 3

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Step 1

Cellular respiration is the process of splitting glucose molecules and produce ATP. Many stages occur in cellular respiration like the Krebs cycle, glycolysis, oxidative phosphorylation, and pyruvate oxidation.

Step 2

The aerobic oxidation of glucose is formed by transfer to oxygen molecules it occurs into severalsteps of  reaction occurs like passing through coenzymes NAD+ and FAD.

Glycolysis : As name suggest that breakdown of glucose molecules and produce energy is called glycolysis.  

Glucose + 2NAD+ +2P + 2ADP ----------à 2 pyruvate + 2 ATP +2NADH + H+

 

Pyruvate dehydrogenase and TCA: for cellular respiration acetl-CoA used in citric acid for oxidation of pyruvate.

Pyruvate + 4NAD+ + FAD + GDP+2H2O ------à 3CO2 +4NADH + 4H+ + pI + GTP +FADH2

 

Electron tranfer chain: It is pass the electron from donator to acceptor of electron.

NADH + H+ + ½ O + ADP + Pi -----à NAD+ + H2O + ATP

FADH2 + ½ O2 +ADP + Pi ----à FAD + H2O + ATP

Step 3

Option 2nd ultimately transferred to O2 after several other transfer reactions.

Electron realase during aerobic oxidation of glucose:

NAD+ +2e + 2H+ -----------à NADH +H+

FAD + 2e + 2H+ ------------à FADH2

Reduction forms NADH and FADH2 are oxid...

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