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In the test tube a&b shown below, yeast was kept in sugar solution which products of respiration . would you expect in tubes a & b?



In the tube containing sugar solution and yeast, aerobic respiration will take place. So the products would be carbon dioxide and water.
The tube which has a oil cover on the sugar solution, doesn't have access to oxygen. So anaerobic respiration will take place. The respiration products will be carbon dioxide, lactic acid or ethanol.
1 5 1
It will be alcohal in both the tubes.

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