This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Galactose and fructose metabolism, Subject name: Biochemistry
[{'content': 'Snow flake cataract is produced because of : \nSelect and explain. \nA. Aldose reductase, B. Galactose reductase, C. Fructose dehydrogenase, D. Alcohol dehydrogenase', 'role': 'user'}, {'content': 'Answer: A \nExplanation: In Diabetics, Excess Glucose freely enters the cells of eye which are highly permeable to glucose. Here glucose is reduced by Aldose Reductase enzyme to produce Sorbitol/ Polyol. Sorbitol is hygroscopic in nature and absorbs water. Swelling due to excess sorbitol in the lens will ultimate leads to Snowflake cataract.', 'role': 'assistant'}]