Assertion :Oxidation of one molecule of NADH gives rise to 3 molecules of ATP and that of one molecule of $F A D H_{2}$ produces 2 molecules of ATP. Reason: The number of ATP molecules synthesised depends on the nature of the electron donor.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Assertion is correct but Reason is incorrect

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Both Assertion and Reason are incorrect

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
NADH and FADH $_{2}$ are two different types of electron donors. They differ in the ways they feed electron during electron transport chain. NADH feeds its electrons into the electron transport chain at the beginning (Complex I). FADH $_{2}$ feeds into the electron transport chain at Complex II (at a lower energy level down the chain). The high energy electrons from NADH have sufficient energy to result in 3 ATP whereas the lower energy electrons in FADH $_{2}$ have only energy for 2 ATP.
So, the correct option is 'Both Assertion and Reason are correct and Reason is correct explanation for Assertion'.

Suggest Corrections

Similar questions

Q. Assertion (A): Oxidation of one molecule of

{FADH}_{2}

produces two molecules of

ATP

, while that of one molecule of

NADH

gives rise to three molecules of

ATP

.

Reason (R): The number of

ATP

molecules synthesised depends on the nature of the electron donor.

Q. Assertion: 100 ml of blood delivers 5 ml oxygen to tissues in normal conditions
Reason : One molecule of Hb can bind with 4 molecules of oxygen

Assertion (A) Rate constant determined from Arrhenius equation are fairly accurate for simple as well as complex molecules.

Reason (R) Reactant molecules undergo chemical change irrespective of their orientation during collision.

(a) Both assertion and reason are correct and the reason is correct explanation of assertion
(b) Both assertion and reason are correct, but reason does not explain assertion.
(c) Assertion is correct, but reason is incorrect
(d) Both assertion and reason are incorrect
(e) Assertion is incorrect but reason is correct.

Assertion (A) All collision of reactant molecules lead to product formation.

Reason (R) Only those collisions in which molecules have correct orientation and sufficient kinetic energy lead to compound formation.

Assertion (A) o-nitrophenol is less soluble in water than the m- and p-isomers.
Reason (R) m and p-nitrophenols exist as associated molecules.
(a) Assertion and reason both are correct and reason is correct explanation of assertion.
(b) Assertion and reason both are wrong statements.
(c) Assertion is correct statement but reason is wrong statement.
(d) Assertion is wrong statement but reason is correct statement.
(e) Both assertion and reason are correct statements but reason is not correct explanation of assertion.

Join BYJU'S Learning Program

Assertion :Oxidation of one molecule of NADH gives rise to 3 molecules of ATP and that of one molecule of FADH2 produces 2 molecules of ATP. Reason: The number of ATP molecules synthesised depends on the nature of the electron donor.

Assertion :Oxidation of one molecule of NADH gives rise to 3 molecules of ATP and that of one molecule of $F A D H_{2}$ produces 2 molecules of ATP. Reason: The number of ATP molecules synthesised depends on the nature of the electron donor.