6. The Membrane
Osmosis
Multiple Choice
Multiple ChoiceGreen olives may be preserved in brine, which is a 30% salt solution. How does this method of preservation prevent microorganisms from growing in the olives?
A
Bacterial cells shrivel up in high salt solutions, causing the cell to burst.
B
High salt concentration lowers the pH, thus inhibiting bacterial metabolism.
C
High salt concentration raises the pH, thus inhibiting bacterial metabolism.
D
A 30% salt solution is hypotonic to the bacteria, so they gain too much water and burst.
E
A 30% salt solution is hypertonic to the bacteria, so they lose too much water and undergo plasmolysis.
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