Grapes hanging on the plant dont ferment but after being plucked from the plant can be fermented. under what conditions do this grapes ferment. Is it a chemical or a physical change.
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When the grapes are attached to the plants, they are still considered as living. They have their immune system intact, due to which they cannot undergo fermentation. After the grapes are plucked, microbes are made to attack them in the absence of air, to form alcohol. This process is called fermentation and it is a chemical process
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Answer:When grapes are attached to the plant, aerobic respiration takes place in the cells as the oxygen reaches there. But when plucked, no oxygen reaches the cell, therefore fermentation starts. It is obvious that fermentation takes place only in the absence of oxygen (anaerobic condition).
Fermentation is a chemical change in which sugar is converted to alcohol.
Explanation:
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