Botany-Electron Transport Chain
NEET Botany Electron Transport Chain MCQ Question
Type: MCQ-fact-Medium-Class 11
What is the role of ubiquinone in the electron transport chain?
A
It transfers electrons from NADH to cytochrome c.
B
It oxidises NADH to NAD+.
C
It acts as a mobile carrier between complex I and complex II.
D
It receives electrons from FADH2 and transfers them to complex III.
Correct Answer
Option D
Detailed Explanation
Ubiquinone, also known as coenzyme Q, receives reducing equivalents from FADH2 (complex II) and then transfers electrons to cytochrome c via cytochrome bc1 complex (complex III), as stated in the NCERT context.
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