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Hi, guys.
I have a question about osmotic pressure. THis is from the kaplan biology pratice exam. The question is...
THe contractile vacuole of Euglena decreases its rate of contraction when the organism is transferred from fresh water to sea water this is explained by...
the answer is an increase in the osmotic pressure of the environment.
I don't quite understand this question. Since they are moved into the high concentration environment, the water inside the cell tends to go out, and possibly shrink. And I guess Euglena has a cell wall to protect the consequent of lysis. But how is it because of the increase osmotic pressure. Osmotic pressure is kinda same concept as osmosis which is water goes from high concetration area to low concetration area. Will you please correct me to define the osmotic pressure precisely?
Thanks
I have a question about osmotic pressure. THis is from the kaplan biology pratice exam. The question is...
THe contractile vacuole of Euglena decreases its rate of contraction when the organism is transferred from fresh water to sea water this is explained by...
the answer is an increase in the osmotic pressure of the environment.
I don't quite understand this question. Since they are moved into the high concentration environment, the water inside the cell tends to go out, and possibly shrink. And I guess Euglena has a cell wall to protect the consequent of lysis. But how is it because of the increase osmotic pressure. Osmotic pressure is kinda same concept as osmosis which is water goes from high concetration area to low concetration area. Will you please correct me to define the osmotic pressure precisely?
Thanks
