Question:
Which of the following compounds/intermediates of Krebs cycle do NOT undergo either decarboxylation or oxidation?
Which of the following compounds/intermediates of Krebs cycle do NOT undergo either decarboxylation or oxidation?
Show Hint
Fumarate is converted to malate by hydration via fumarase enzyme.
Updated On: Mar 6, 2026
- Isocitric acid
- $\alpha$-ketoglutaric acid
- Fumaric acid
- Malic acid
Show Solution
Verified By Collegedunia
The Correct Option is C
Solution and Explanation
Step 1: Understanding Krebs cycle reactions.
The Krebs cycle involves a series of oxidation and decarboxylation reactions to release energy.
Step 2: Analyzing each intermediate.
Isocitric acid and $\alpha$-ketoglutaric acid undergo oxidative decarboxylation.
Malic acid undergoes oxidation to form oxaloacetic acid.
Fumaric acid undergoes hydration, not oxidation or decarboxylation.
Step 3: Conclusion.
Thus, fumaric acid does not undergo oxidation or decarboxylation in the Krebs cycle.
The Krebs cycle involves a series of oxidation and decarboxylation reactions to release energy.
Step 2: Analyzing each intermediate.
Isocitric acid and $\alpha$-ketoglutaric acid undergo oxidative decarboxylation.
Malic acid undergoes oxidation to form oxaloacetic acid.
Fumaric acid undergoes hydration, not oxidation or decarboxylation.
Step 3: Conclusion.
Thus, fumaric acid does not undergo oxidation or decarboxylation in the Krebs cycle.
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 Population genetics 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