MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Krebs Cycle

FAD acts as a...

Question

FAD acts as an $e^{-}$ acceptor in between

A

Fumaric and malic acid

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

B

Succinic and fumaric acid

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

C

Malic and oxaloacetic acid

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

D

Citric and isocitric acid

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

Open in App

Solution

The correct option is A Succinic and fumaric acid
Succinate changes to fumarate in the citric acid cycle. The succinate is a four carbon molecule which is oxidized, to fumarate. In this reaction, two hydrogen atoms with their electrons are transferred to FAD and converts into FADH $_{2}$ in presence of enzyme succinate dehydrogenase.
So, the correct answer is option B.

Suggest Corrections

thumbs-up

0

Similar questions

Q. Pick the reaction from the following where the reduction of FAD

^{+}

occurs in the reactions of respiration.
(I) Succinic acid

\to

Fumaric
(II) Malic acid

\to

Oxaloacetic acid
(III) 2 phosphoglycerate

\to

Phosphoenol pyruvic acid
(IV) Pyruvic acid

\to

Q. Match List I(compound oxidized during Krebs cycle) with List II(Compound formed on oxidation) and select the correct answer.

List-I	List-II
a. Pyruvic acid	$1$ . AcetylCoA
b. Isocitric acid	$2$ . Succinyl CoA
c. a-Ketoglutaric acid	$3$ . Oxaloacetic acid
d. Succinic acid	$4$ . Oxalosuccinic acid
	$5$ . Fumaric acid

Q. Pick up the reactions from the following where a water molecule is removed and reduction of

N A D^{+}

does not occur in the reactions of respiration.
i) Succinic acid to fumaric acid
ii) Malic acid to oxaloacetic acid
iii) 2-Phosphoglycerate to phosphoenol pyruvic acid
iv) Pyruvic acid to acetyl CoA

Q. FAD acts as an electron acceptor in between

Q. NADP, NAD and FAD are acceptors of

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Aerobic Respiration

BIOLOGY

Watch in App

explore_more_icon

Explore more

Standard XII Biology

Join BYJU'S Learning Program

CrossIcon