Question:
Cytochrome C is oxidized by complex IV [cytochrome C oxidase] consisting of----
Cytochrome C is oxidized by complex IV [cytochrome C oxidase] consisting of----
Show Hint
Complex IV is cytochrome c oxidase, which passes electrons to oxygen using two cytochromes and copper.
Updated On: Nov 12, 2026
- Cytochrome a and \(a_{3}\)
- Cytochrome bC1 and \(a_{3}\)
- FMN
- Ubiquinone
Show Solution
Verified By Collegedunia
The Correct Option is A
Solution and Explanation
Step 1: Understanding the Concept
Complex IV, cytochrome c oxidase, takes electrons from reduced cytochrome c and passes them to oxygen, forming water.
Step 2: Composition
It is made of cytochrome a and cytochrome \(a_3\), together with two copper centres.
Step 3: Compare the options
Cytochrome \(bc_1\) is complex III. FMN belongs to complex I, and ubiquinone is the mobile carrier between complexes.
Final Answer:
Complex IV consists of cytochromes a and a3. \[ \boxed{\text{(A) }\text{Cytochrome a and }a_{3}} \]
Complex IV, cytochrome c oxidase, takes electrons from reduced cytochrome c and passes them to oxygen, forming water.
Step 2: Composition
It is made of cytochrome a and cytochrome \(a_3\), together with two copper centres.
Step 3: Compare the options
Cytochrome \(bc_1\) is complex III. FMN belongs to complex I, and ubiquinone is the mobile carrier between complexes.
Final Answer:
Complex IV consists of cytochromes a and a3. \[ \boxed{\text{(A) }\text{Cytochrome a and }a_{3}} \]
Was this answer helpful?
0
0
Top MHT CET Biology Questions
- During r- DNA technology, which one of the following enzymes is used for cleaving DNA molecule ?
- Important sperm lysin used for dissolving egg covering is
- In biogas plant, the role of acidogenic bacteria is to
- In $C_{3}$ plants, the first stable product of photosynthesis during the dark reaction is
- In case of anaerobic respiration, the RQ is ___________
View More Questions
Top MHT CET The Electron Transport Questions
- The last electron acceptor in ETS (Electron Transport System) is:
- During ETS, when ubiquinol is oxidized by the cytochrome \(bc_{1}\) complex, the electrons released are transferred to ____.
- Which cytochrome acts as a mobile electron carrier, transferring electrons between complex III and IV during ETS?
- In the ETS, electrons from \(\text{FADH}_{2}\) enter into which complex?
- Given below are two statements:
Statement (I): \(\text{NADH}_{2}\) (\(\text{NADH}+\text{H}^{+}\)) and \(\text{FADH}_{2}\) that are produced during glycolysis, connecting link reaction and Krebs cycle, are oxidised with the help of various electron carriers and enzymes.
Statement (II): These carriers and enzymes are arranged in the cytoplasm in the form of various complexes as complex I, II, III, IV and V.
In light of the above statements, choose the most appropriate answer from the options given below.
View More Questions
Top MHT CET Questions
- During r- DNA technology, which one of the following enzymes is used for cleaving DNA molecule ?
- In non uniform circular motion, the ratio of tangential to radial acceleration is (r = radius of circle, $v =$ speed of the particle, $\alpha =$ angular acceleration)
- The temperature of $32^{\circ}C$ is equivalent to
- The line $5x + y - 1 = 0$ coincides with one of the lines given by $5x^2 + xy - kx - 2y + 2 = 0 $ then the value of k is
- The heat of formation of water is $ 260\, kJ $ . How much $ H_2O $ is decomposed by $ 130\, kJ $ of heat ?
View More Questions