wiz-icon
MyQuestionIcon
MyQuestionIcon
11
You visited us 11 times! Enjoying our articles? Unlock Full Access!
Question

Which of the following is important in electron transport system?

A
Ubiquinone
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
B
Acetyl CoA
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
Tricarboxylic acid
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
Ferricyanide
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is A Ubiquinone
Ubiquinone is a lipid-soluble benzoquinone and serves as an electron carrier in membrane-associated electron-transfer chains. Reduction of ubiquinone with one electron forms the semiquinone radical while with two electrons form ubiquinol. Being small and hydrophobic, it is freely diffusible within the lipid bilayer of the inner mitochondrial membrane. Due to its ability to carry both electrons and protons, it couples electron flow to proton movement. Acetyl CoA is the product of oxidative decarboxylation of pyruvate and enters Kreb cycle for complete decarboxylation. Condensation of Acetyl CoA with OAA forms citrate, the first tricarboxylic acid of Kreb cycle. Ferricyanide is the nonbiological electron acceptor. Thus, the correct answer is option A.

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Aerobic Respiration
BIOLOGY
Watch in App
Join BYJU'S Learning Program
CrossIcon