KROK 1 2015 – Question 101 · KROK (Medicine) · Biological Chemistry
Diseases of respiratory system and circulatory disorders impair the transport of oxygen, thus causing hypoxia. Under these conditions the energy metabolism is carried out by anaerobic glycolysis. As a result, the following substance is generated and accumulated in blood:
- A. Lactic acid
- B. Fumaric acid
- C. Pyruvic acid
- D. Glutamic acid
- E. Citric acid
Hint
Without oxygen the respiratory chain cannot reoxidise NADH, so ask which reaction regenerates NAD+ at the end of anaerobic glycolysis and what it produces.
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