Home
Class 11
BIOLOGY
Assertion : One NADH(2) yields three ATP...

Assertion : One `NADH_(2)` yields three ATP molecules.
Reason : For transfer over ETS, `H^(+)` atom dissociates into `H^(+)` and `e^(-)`. During transfer of electrons at three stages ATP is generated over `F_(0)-F_(1)` complex.

A

If both Assertion and Reason are true and Reason is correct explanation of Assertion.

B

If both Assertion and Reason are true but Reason is not a correct explanation of Assertion.

C

If Assertion is true but Reason is false.

D

If both Assertion and Reason are false.

Text Solution

AI Generated Solution

The correct Answer is:
### Step-by-Step Solution: 1. **Understanding the Assertion**: - The assertion states that one molecule of NADH2 yields three ATP molecules. This is based on the process of oxidative phosphorylation in cellular respiration, where NADH is oxidized in the electron transport chain (ETC) and contributes to the production of ATP. 2. **Understanding the Reason**: - The reason explains the mechanism behind the assertion. It states that during the transfer of electrons in the electron transport system (ETS), hydrogen atoms dissociate into protons (H⁺) and electrons (e⁻). This process occurs at three different stages in the ETC, where ATP is generated through the F0-F1 ATP synthase complex. 3. **Evaluating the Relationship**: - The assertion is indeed correct as NADH2 can yield up to three ATP molecules during oxidative phosphorylation. The reason is also correct as it accurately describes the process of electron transfer and ATP generation in the ETS. 4. **Conclusion**: - Both the assertion and reason are true, and the reason provides a correct explanation for the assertion. Therefore, the correct option is that both assertion and reason are true and the reason is a correct explanation of the assertion. ### Final Answer: Both assertion and reason are true, and the reason is a correct explanation of the assertion. ---
Promotional Banner

Topper's Solved these Questions

  • RESPIRATION IN PLANTS

    MODERN PUBLICATION|Exercise COMPETITON FILE (D. REASONING TYPE QUESTIONS)|9 Videos

  • RESPIRATION IN PLANTS

    MODERN PUBLICATION|Exercise COMPETITON FILE (E. ADDITIONAL MULTIPLE CHOICE QUESTIONS)|10 Videos

  • RESPIRATION IN PLANTS

    MODERN PUBLICATION|Exercise COMPETITON FILE (B. MATCHING TYPE QUESTIONS)|2 Videos

  • PLANT KINGDOM

    MODERN PUBLICATION|Exercise Chapter Practice Test|16 Videos

  • STRUCTURAL ORGANISATION IN ANIMALS

    MODERN PUBLICATION|Exercise CHAPTER PRACTICE TEST (Section -E)|2 Videos

Similar Questions

Explore conceptually related problems

Assertion : Oxidation of one molecule of NADH gives rise to 3 molecules of ATP and that of one molecule of FADH_(2) produces 2 molecules of ATP Reason : The number of ATP molecules synthesised depends on the nature of the electron donor.

ATP molecules produced respectively by NADH (H^(+) and FAD H_(2) during electron transport are

ATP molecules prodcued respectively by NaDH (H^(+))" and "FADH_(2) during electron transport are

Assertion : Each molecule of ribulose-1 ,5 biphosphate fixes one molecule of CO_(2) Reason : Three molecules of NADPH and two ATP are required for fixation of one molecule of CO_(2)

The bond dissociation energy of a diatomic molecule is also called bond energy. However, the bond dissociation energy depends upon the nature of bond and also the molecule in which the bond is present. The bond energy N-H bind in NH_(3) is equal to one-third of the energy of dissociation of NH_(3) because there are three N-H bonds and those of C-H bond in CH_(4) is equal to one-fourth of the energy of dissociation of CH_(4) Heat of a reaction = Bond energy of reactants - Bond energy of products Find the bond enthalpy of S-S bond from the following data. C_(2)H_(5)-S-C_(2)H_(5)(g) " " Delta H_(f)^(@) = -147.23 kJ mol^(-1) C_(2)H_(5)-S-S-C_(2)H_(5)(g) " " Delta H_(f)^(@) = -201.92 kJ mol^(-1) S(g) Delta H_(f)^(@) = 222.80 kJmol^(-1)

Oxidation is de-electronation whereas reduction is electronation. Oxidants are the substances which oxidise others and reduced themselves. On the other hand reductants are the substances which reduce others and oxidised themselves. The oxidation number of an element in a compound decides its nature to act as oxidant or reductant. Oxidation-reduction occur simultaneously and the overal chemical change is called redox reaction. Redox reactions are of three types : (i) Intermolecular erdox reactions, (ii) Auto-redox or disproportionation reaction, and (iii) Intramolecular redox reactions. Total number of electrons transferred during the change : 3Fe+4H_(2)O rarr Fe_(3)O_(4) + 4H_(2)

Assertion : Six molecules of CO_(2) and twelve molecules of NADPH^(+)H^(+) and 18 ATP are used to from one hexose molecule. Reason : Light reaction result in formation of ATP and NADPH_(2)

Assertion : Olefins have the general formula C_(n)H_(2n+1) . Reason : There is one double bond between two carbon atoms in their molecules.