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Which of the following is the correct assumptions regarding the respiratory balance sheet? There is a sequential, orderly pathway functioning, with one substrate forming the next and with glycolysis, TCA cycle, and ETS pathway following one after another. The NADH synthesized in glycolysis is transferred into the mitochondria and undergoes oxidative phosphorylation.

Which of the following is the correct assumptions regarding the respiratory balance sheet? There is a sequential, orderly pathway functioning, with one substrate forming the next and with glycolysis, TCA cycle, and ETS pathway following one after another. The NADH synthesized in glycolysis is transferred into the mitochondria and undergoes oxidative phosphorylation. Correct Answer Both are correct

The correct answer is 3 i.e. Both are correct,

Respiratory balance sheet:

  • It is possible to make calculations of the net gain of ATP for every glucose molecule oxidized, but in reality, this can remain only a theoretical exercise.
  • These calculations can be made only on certain assumptions that:
    • There is a sequential, orderly pathway functioning, with one substrate forming the next and with glycolysis, TCA cycle, and ETS pathway following one after another.
    • The NADH synthesized in glycolysis is transferred into the mitochondria and undergoes oxidative phosphorylation.
    • None of the intermediates in the pathway are utilized to synthesize any other compound.
    • Only glucose is being respired – no other alternative substrates are entering in the pathway at any of the intermediary stages. 
  • But this kind of assumption is not valid in a living system; all pathways work simultaneously and do not take place one after another.
  • Substrates enter the pathways and are withdrawn from it as and when necessary.
  • ATP is utilized as and when needed; enzymatic rates are controlled by multiple means.
  • Yet, it is useful to do this exercise to appreciate the beauty and efficiency of the living system in the extraction and storing energy.
  • Hence, there can be a net gain of 36 ATP molecules during aerobic respiration of one molecule of glucose.

Related Questions

Which of the following events after the balance sheet date would normally qualify as adjusting events according to AS-4 (Events after balance sheet date)? (A) The insolvency of a customer on the balance sheet date (B) A decline in the market value of investments (C) The declaration of an ordinary dividend (D) The determination of the cost of assets purchased before the balance sheet date Choose the most appropriate answer from the options given below:
Consider the following statements regarding mitochondria and choose the correct answer:
1. Mitochondria are present in all cells which respire aerobically
2. They are absent in bacteria, where the plasma membrane has respiratory enzymes
3. Cells with high metabolic activity have a high number of mitochondria
Oxidative phosphorylation and substrate-level phosphorylation are two different processes of ATP synthesis.
Which of the following is the correct assumptions regarding the respiratory balance sheet? None of the intermediates in the pathway are utilized to synthesize any other compound. Only glucose is being respired – no other alternative substrates are entering in the pathway at any of the intermediary stages. 
In the question below, a statement is given which is followed by three assumptions numbered I, II and III. An assumption is something that is supposed or taken for granted. You have to consider the following assumptions and decide which of the assumptions is implicit in the statement. Statement: The Finance ministry has suggested a way forward regarding the ongoing debate around data localisation brewing between the Reserve Bank of India and the digital payment industry by saying that companies could be allowed to retain a copy of the data in the geography where it is being currently stored and the central bank could issue a satisfactory circular regarding the timeline it has given to the industry. Assumptions: I. The ministry has circulated a note among participants highlighting the points of discussions and suggestions as key takeaways from the meeting. II. The move had caused a split within the broader payments industry as well where one section of players supported the RBI move and the other said that keeping a copy of the data outside India should be allowed. III. The RBI had issued a circular regarding compulsory storage of payments data within India only. This had thrown the payments industry which is largely dominated by global players like Visa and Mastercard into a tizzy. 
If the oxidative phosphorylation was uncoupled in the mitochondria then there is a/an ____________
Consider the following statements.
1. Glycolysis occurs in cytoplasm.
2. Glycolysis does not require oxygen.
3. In anaerobic organisms, only glycolysis occur and that is called fermentation.
Which of the statement(s) given above is/are correct about glycolysis ?
Consider the growth of a microorganism in batch culture. When the substrate concentration is high, the cell density doubles every 0.75 h, the observed substrate yield coefficient is 0.3 g DCW/g, and substrate consumption is allocated towards biosynthesis (60%), maintenance (10%), as well as product formation (30%). The product formation is strictly growth-associated. The batch reactor is inoculated with 0.01 g DCW/L and 10 g/L substrate. Estimate the maximum cell density (after lag phase).
Assertion (A): In preparing final accounts, if closing stock is given in the trial balance, it is shown only in the Balance Sheet.
Reason (R): Any item appearing in the trial balance is treated only at one place i.e. either in the trading and profit & loss a/c or in the balance sheet.
Now, select the correct answer:
Study the following statements.
1. Glycolysis takes place in cytoplasm.
2. Kreb's cycle takes place in mitochondria.
3. Electron transport chain takes place in mitochondria.
Which of the statements given above are true ?