Questions: If a bacterial cell is placed in 100% alcohol, what happens to the water in the cell?
Hydrolysis
Water enters the cell
Water leaves the cell
Transcript text: Multiple Choice Question
If a bacterial cell is placed in $100 \%$ alcohol, what happens to the water in the cell?
Hydrolysis
Water enters the cell
Water leaves the cell
Solution
The answer is: Water leaves the cell.
Explanation for each option:
Hydrolysis: This is incorrect. Hydrolysis is a chemical reaction involving the breaking of a bond in a molecule using water. It is not directly related to the movement of water in or out of the cell when placed in alcohol.
Water enters the cell: This is incorrect. If a bacterial cell is placed in 100% alcohol, the alcohol creates a hypertonic environment outside the cell. In a hypertonic solution, water tends to move out of the cell to balance the concentration of solutes.
Water leaves the cell: This is correct. When a bacterial cell is placed in 100% alcohol, the alcohol draws water out of the cell due to osmosis. The cell loses water and becomes dehydrated, which can lead to cell death.
Summary:
When a bacterial cell is placed in 100% alcohol, water leaves the cell due to the hypertonic nature of the alcohol solution, leading to dehydration of the cell.