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Which statement is wrong for Krebs' cycl...

Which statement is wrong for Krebs' cycle ?

A

There are three points in the cycle where `NAD^(+)` is reduced to `NADH + H^(+)`

B

There is one point in the cycle where `FAD^(+)` is reduced to `FADH_(2)`

C

During conversion of succinyl Co-A to succinic acid, a molecules of GTP is synthesised

D

The cycle starts with condensation of acetyl group (acetyl Co-A) with pyruvic acid to yield citric acid

Text Solution

Verified by Experts

The correct Answer is:
D

Option (d) is incorrect, which can be corrected as Krebs' cycle starts with the condensation of acetyl group with oxaloacetic acid and water to yield citric acid.
During conversion of succinic acid to fumaric acid `FAD^(+)` is reduced to `FADH_(2)` . During conversion of pyruvic acid to acetyl Co-A , isocitrate to oxalosuccine acid and `alpha`-ketoglutaric acid to succinyl Co-A `NAD^(+)` is reduced to `NADPH+H^(+)` .
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Knowledge Check

  • Which statement is wrong for Kreb's cycle ?

    A
    There is one point in the cycle where `FAD^(+)` is reduced to `FADH_(2)`
    B
    During conversion of succinyl CoA to succinic acid, a molecule of GTP is synthesized.
    C
    The cycle starts with condensation of acetyl group (acetyl CoA) with pyruvic acid to yield citric acid
    D
    There are three points in the cycle where `NAD^(+)` is reduced to NADH + `H^(+)`
  • Which statement is wrong.for Kreb's cycle

    A
    There is one point in the cycle where `FAD^+~ is reduced to `FADH_2`,
    B
    During conversion of succinyl CoA to succinic acid, a molecule of GTP is synthesised,
    C
    The cycle starts with condensation of acetyl group (acetyl CoA) with pyruvic acid to yield citric acid,
    D
    There are three points in the cycle where NAD is reduced to NADH `+H^(+)`
  • Kreb's cycle

    A
    Liberates a minor part of energy during respiration
    B
    Is operative in photorespiration
    C
    Reactions are independent of oxygen supply
    D
    Is a link between carbohydrate and nitrogen metabolism
  • NEET PREVIOUS YEAR (YEARWISE + CHAPTERWISE)-RESPIRATION IN PLANTS-Exercise
    1. Which statement is wrong for Krebs' cycle ?

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    2. Which of the following biomolecules is common to respiration-mediated ...

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    3. Oxidation phosphorylation is

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    4. In which one of the following processes CO(2) is not released

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    5. The three boxes in this diagram represent the three major biosynthetic...

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    6. Which of the following biomolecules is common to respiration-mediated ...

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    7. The energy releasing process in which the substrate is oxidised withou...

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    8. Aerobic respiratory pathway is appropriately termed

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    9. the chemiosmotic coupling hypothesis of oxidative phosporylaion propas...

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    10. The overall goal of glycolysis, Krebs cycle and the electron transport...

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    11. All enzymes of TCA cycle are located in the mitochondrial matrix excep...

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    12. How many ATP molecules could maximally be generated from one molecule ...

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    13. During which stage in the complete oxidation of glucose are the greate...

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    14. Chemiosmotic theory of ATP synthesis in mitochondria is based on

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    15. In glycolysis, during oxidation electrons are removed by

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    16. In alcoholic fermentation

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    17. Which of the following concerns photophosphorylation

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    18. In which one of the following do the two names refer to one and the sa...

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    19. How many ATP molecules are produced by aerobic oxidation of one molecu...

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    20. Net gain of ATP molecules during aerobic respiration is

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