After thinking about it you realise that there must be some information that is incorrect or missing from the diagram above. Select the image below that explains why the ion concentrations remain unequal across the membrane Select the correct image by clicking on it (you can only select one image). Time 2 HHE Time 2 Time 2 Time 2

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Your friend has made an artificial membrane to study ion concentration gradients in a
laboratory and is confused after observing the ion concentration gradient in the image
below. Initially (Time 1) there was a very strong concentration gradient across the
membrane and your friend expected that ions would move until the concentrations were
equal across the membrane.
For a short time there was movement of ions but this soon stopped and there is no further
change in the situation no matter how long you wait (see Time 2).
Time 1
You friend is confused because there is still a strong concentration gradient and there are
open ion channels available. So why don't the concentrations equalise?
After thinking about it you realise that there must be some information that is incorrect or
missing from the diagram above.
Select the image below that explains why the ion concentrations remain unequal
across the membrane
Time 2
Select the correct image by clicking on it (you can only select one image).
Time 2
||||||||||
Time 2
Time 2
Time 2
Transcribed Image Text:Your friend has made an artificial membrane to study ion concentration gradients in a laboratory and is confused after observing the ion concentration gradient in the image below. Initially (Time 1) there was a very strong concentration gradient across the membrane and your friend expected that ions would move until the concentrations were equal across the membrane. For a short time there was movement of ions but this soon stopped and there is no further change in the situation no matter how long you wait (see Time 2). Time 1 You friend is confused because there is still a strong concentration gradient and there are open ion channels available. So why don't the concentrations equalise? After thinking about it you realise that there must be some information that is incorrect or missing from the diagram above. Select the image below that explains why the ion concentrations remain unequal across the membrane Time 2 Select the correct image by clicking on it (you can only select one image). Time 2 |||||||||| Time 2 Time 2 Time 2
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