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MHT CET 202621 AprilEvening Shift

Exam: MHT CET
Year: 2026
Date: 21 April
Shift: Evening Shift
Subject: Biology
Chapter: Respiration in Plants

MHT CET 2026 · 21 April · Evening Shift · Biology · Respiration in Plants

Cytochrome C is oxidized by complex IV [cytochrome C oxidase]...

Cytochrome C is oxidized by complex IV [cytochrome C oxidase] consisting of----

Options

ACytochrome a and $a_3$
BCytochrome bC1 and $a_3$
CFMN
DUbiquinone

Correct answer

A. Cytochrome a and $a_3$

Step-by-step solution

Complex IV in the electron transport chain is also known as cytochrome c oxidase.

It is responsible for the oxidation of cytochrome c and the reduction of oxygen to water.

Complex IV consists of cytochromes a and

a_3

, along with two copper centers (Cu_A

and

Cu_B

).<br><br>Answer: Cytochrome a and

a_3

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