experiment looking at the hyd? Sports Drinks and Cell Hydration?
we did this experiment on sports direction:
experiment looking at the hydration properties of common sports drinks. This experiment is set up in the front of 3A40. Please get involved if you are interested. Record your data in the provided laptop computer and below.
We have made up several artificial cells using dialysis tubing that are filled with 0.9 % NaCl to mimic the tonicity of a mammalian cell. Dialysis tubing has very small holes in it to allow the movement of small molecules like water between the cell and the solution. We store the artificial cells in an isotonic environment, i.e., in a beaker containing 0.9 % NaCl.
You will need to weigh the artificial cell prior to putting it into a beaker containing the sports drink that you are testing. Do this by removing the artificial cell from its beaker and carefully drying it using the provided paper towels. When you are sure that you have removed all the excess liquid from the outside of the artificial cell, weigh it and record the weight in the table below and on the provided laptop computer under the appropriate sports drink column. Now gently place the artificial cell in a beaker containing the chosen sports drink. Start the timer.
Return when the cell has been in the sports drink solution for 60 minutes. Remove the artificial cell from the solution and dry it as before. Weigh the cell and record your data in the table below and on the laptop provided. Calculate the loss or gain in weight.
result: lost water and weight.
what did this experiment show?
we did this experiment on sports direction:
experiment looking at the hydration properties of common sports drinks. This experiment is set up in the front of 3A40. Please get involved if you are interested. Record your data in the provided laptop computer and below.
We have made up several artificial cells using dialysis tubing that are filled with 0.9 % NaCl to mimic the tonicity of a mammalian cell. Dialysis tubing has very small holes in it to allow the movement of small molecules like water between the cell and the solution. We store the artificial cells in an isotonic environment, i.e., in a beaker containing 0.9 % NaCl.
You will need to weigh the artificial cell prior to putting it into a beaker containing the sports drink that you are testing. Do this by removing the artificial cell from its beaker and carefully drying it using the provided paper towels. When you are sure that you have removed all the excess liquid from the outside of the artificial cell, weigh it and record the weight in the table below and on the provided laptop computer under the appropriate sports drink column. Now gently place the artificial cell in a beaker containing the chosen sports drink. Start the timer.
Return when the cell has been in the sports drink solution for 60 minutes. Remove the artificial cell from the solution and dry it as before. Weigh the cell and record your data in the table below and on the laptop provided. Calculate the loss or gain in weight.
result: lost water and weight.
what did this experiment show?