Krebs Cycle
- Previous year questions on Krebs Cycle for NEET PG (National Eligibility cum Entrance Test - Postgraduate), from the Biochemistry section of the exam.
- Most questions here come from previous-year papers of Indian postgraduate medical entrance and licensing exams; where a paper and year are recorded the question carries them. The image-based questions are original vignettes written around an openly licensed figure, and were never asked in any exam.
- 4 live questions in Krebs Cycle.
- 1 of 4 questions carries a verified exam year: 2018.
- Biochemistry is worth about 16 of 300 questions on the exam. See every subject’s weightage.
- Question set last updated 19 Aug 2026.
Q1.Patient presents with inability to convert pyruvate to Acetyl CoA. Which of the following can be given in treatment:-
- AVitamin B3
- BThiamine B1✓ Correct answer
- CFree fatty acids
- DBiotin
Q2.What high energy phosphate compound is formed in the citric acid cycle through substrate level phosphorylation:
- AATP
- BTTP
- CITP
- DGTP✓ Correct answer
Q3.Which acid is formed in the citric acid cycle?
- AOxaloacetic acid✓ Correct answer
- BGlutamic acid
- CNitric acid
- DNone of the above
Q4.Which of these is an example of anaplerotic reaction?
- APyruvate to oxaloacetate✓ Correct answer
- BPyruvate to Acetyl CoA
- CPyruvate to lactic acid
- DPyruvate to acetaldehyde
Answer key
Q1: B. Thiamine B1; Q2: D. GTP; Q3: A. Oxaloacetic acid; Q4: A. Pyruvate to oxaloacetate.
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