If the osmolarity of a growth medium is rapidly doubled, then the E. coli cells growing...
If the osmolarity of a growth medium is rapidly doubled, then
the E. coli cells growing in that medium are likely to
_______________________.
compensate by decreasing the osmolarity inside the cell
shrink
pump Na+ out of the cell
convert glucose to starch
pump water into the cell
Homework Answers
- The correct answer is shrink.
- Osmolarity is the number of moles of solute per litre.
- Doubling the Osmolarity of the growth medium would mean a double concentration of the medium.
- Therefore, to maintain the balance, the cells will try to dilute the medium by giving out water.
- Due to this the osmalarity of the cells will decrease as the concent ion of the solution inside the cell has increased on giving out water.
- Due to the decrease in the water content, the cells will now shrink.
Thank You!
The correct answer is: shrink
Explanation:
If the osmolarity of the growth medium is rapidly doubled, the environment becomes hypertonic relative to the inside of the E. coli cells. Water will move out of the bacterial cells by osmosis, causing them to shrink due to the loss of water. This is a typical response when cells are exposed to a hypertonic environment.
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