Question:
During Krebs cycle, the intermediate $\alpha$-ketoglutarate is formed as a result of ______________.
During Krebs cycle, the intermediate $\alpha$-ketoglutarate is formed as a result of ______________.
Show Hint
Decarboxylation reactions in Krebs cycle release CO$_2$.
Updated On: Mar 6, 2026
- hydration of oxalosuccinate
- oxidation of succinyl co-A
- oxidation of cis-aconitate
- decarboxylation of oxalosuccinate
Show Solution
Verified By Collegedunia
The Correct Option is D
Solution and Explanation
Step 1: Understanding Krebs cycle.
Krebs cycle is a cyclic series of enzyme-controlled reactions involved in aerobic respiration.
Step 2: Formation of $\alpha$-ketoglutarate.
Isocitrate is first oxidized to oxalosuccinate.
Oxalosuccinate then undergoes decarboxylation to form $\alpha$-ketoglutarate.
Step 3: Identifying the correct process.
The key step forming $\alpha$-ketoglutarate is decarboxylation of oxalosuccinate.
Step 4: Conclusion.
Hence, $\alpha$-ketoglutarate is formed by decarboxylation of oxalosuccinate.
Krebs cycle is a cyclic series of enzyme-controlled reactions involved in aerobic respiration.
Step 2: Formation of $\alpha$-ketoglutarate.
Isocitrate is first oxidized to oxalosuccinate.
Oxalosuccinate then undergoes decarboxylation to form $\alpha$-ketoglutarate.
Step 3: Identifying the correct process.
The key step forming $\alpha$-ketoglutarate is decarboxylation of oxalosuccinate.
Step 4: Conclusion.
Hence, $\alpha$-ketoglutarate is formed by decarboxylation of oxalosuccinate.
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 General Science Questions
- What is the name of the disease in which a rice plant grows tall, thin, and becomes pale?
- The best method to eliminate harmful recessive genes in the technique of animal breeding is ...........
- The outer chitinous layer of the gemmule of a sponge is secreted by .............
- Select the correct option. Sub order Anthropoidea includes ........
Sub order Anthropoidea includes:
[i)] Lemurs
[ii)] Lorises and tarsiers
[iii)] Old and new world monkeys
[iv)] Apes
[v)] Man - Select the INCORRECT statement.
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