Click the \"Co-Transport\" tab at the top of the interactive. Create a high conc
ID: 185924 • Letter: C
Question
Click the "Co-Transport" tab at the top of the interactive. Create a high concentration of purple circle molecules outside of the cell and a high concentration of cyan square molecules inside the cell. Now click on the "Passive" button on the left side of the lab. Add in at least three purple channels. Observe the results and complete the below sentences. The concentration of circles inside the cell should The concentration of squares inside the cell should The concentration of X-shaped molecules inside the cell should decrease increase not change Without resetting the lab, click on the "Antiporter" button on the left side of the lab. Add in at least three cyan square antiporters. Observe the results and complete the below sentences The concentration of squares inside the cell should The concentration of X-shaped molecules inside the cell shouldExplanation / Answer
In the first case, by adding purple channels, which will increase the passive transport of purple circle molecules from outside the cell to inside the cell, and clicking on passive (transport), the first 3 answers would be the following ones:
The concentration of circles (purple molecules) inside the cells should increase - As initially there is a high concentration of purple circle cells outside the cell and not inside the cell, to reach equilibrium, once adding the purple channels and clicking on passive transport, their transportation (and therefore concentration) inside the cell will increase, as passive transport occurs down a concentration gradient.
The concentration of the squares (cyan molecules) inside the cells should decrease - As initially there is a high concentration of cyan square cells inside the cell and not outside the cell, the passive transport would be towards outside the cell, therefore the concentration inside the cell would decrease, although it wouldn't be facilitated diffusion but simple.
The concentration of X-shaped molecules inside the cell should not change - Assuming the concentration of any other molecules would be at equilibrium (like X-shaped molecules), no diffusion would take place and therefore no change in concentrations.
In the second case, by adding cyan antiporters, and clicking on antiporter (transport), the last 2 answers would be the following ones:
The concentration of squares inside the cell should not change as the anti-porter molecules are unable to make an exchange. It is not able to replace the squares from inside the cell.
The concentration of X-shaped molecules inside the cell should decrease as it aligns with the presence of the antiporter molecules.
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