This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Biochemistry
[{'content': 'Decreased glycolytic activity impairs oxygen transport by hemoglobin due to \nSelect and explain. \nA. Reduced energy production, B. Decreased production of 2,3 - bisphosphoglycerate, C. Reduced synthesis of hemoglobin, D. Low levels of oxygen', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Decreased production of 2,3-bisphosphoglycerate\xa0\n\n2, 3 DPG is produced by an alternative pathway in glycolysis.\nIf the glycolytic activity is decreased, the levels of 2,3 - DPG in RBCs will decrease.\nDecreased level of 2,3 - DPG causes:-\n\n\nShifts the oxygen-hemoglobin curve to the left\nIncreases the oxygen affinity of hemoglobin.', 'role': 'assistant'}]