immense the glucose solution in cellulose bag in to the beaker for about 30minutes, more water will diffuse through the selective permeable membrane of the bag leaving the sugar. simple take out the bag,stand in a dry baker and test for glucose using a Benedict solution which indicate the finale result of the experiment.
The balloon will contain a mixture of the 10% and 5% glucose solutions. Since water can pass through but not glucose, the glucose concentration inside the balloon will decrease over time as water moves from the lower concentration in the beaker to the higher concentration in the balloon through osmosis.
If a beaker containing glucose is permeable to glucose, then the glucose will go through the beaker.
An indicator is a substance that changes colour in the presence of another substance. Let say inside the beaker are substances of both glucose and starch. The glucose and starch are of same colour. By injecting the lugol's solution into the beaker, the lugol's solution changes colour in the area of where starch is, while no colour changes in the presence of glucose. Thus, by using the Lugol's solution which only acts as indicator for starch and not glucose, we could tell part which area floats around with glucose and starch substances. Lugol's solution works as an indicator because it will stain starches due to iodine's interaction with the coil structure of the polysaccharide.
The starch indicator solution will diffuse out of the bag (cell) into the beaker, changing the color of the starch solution to a blue, purple, or black color (assuming that it's iodine). The color of the indicator solution inside the bag will not change, because only the glucose can diffuse into the bag, but the starch cannot diffuse into the bag.
The solution in the bag is hypotonic compared to the solution in the beaker. This is because the bag has a lower concentration of solute (2%) compared to the beaker (10%), so water will tend to move into the bag to equalize the concentrations, causing the bag to swell.
The balloon will contain a mixture of the 10% and 5% glucose solutions. Since water can pass through but not glucose, the glucose concentration inside the balloon will decrease over time as water moves from the lower concentration in the beaker to the higher concentration in the balloon through osmosis.
If a beaker containing glucose is permeable to glucose, then the glucose will go through the beaker.
If the glucose solution is conducting electricity, the circuit will allow current to flow through the solution, completing the electrical circuit. This is because glucose molecules ionize in solution, producing charged particles that can conduct electricity. It is essential to use caution when handling electricity and conducting experiments in liquid solutions.
Nucleotides, DNA polymerase, and phosphate buffers would be found in the beaker of DNA but not in the beaker with glucose. These components are specifically associated with molecular biology processes like DNA replication and amplification, which are not related to glucose metabolism.
do you go to UTAS? that is not an answer how is this going to help people ????
Well what i think is that The water outside of the "cell" will change colors and not the "cell" :D
An indicator is a substance that changes colour in the presence of another substance. Let say inside the beaker are substances of both glucose and starch. The glucose and starch are of same colour. By injecting the lugol's solution into the beaker, the lugol's solution changes colour in the area of where starch is, while no colour changes in the presence of glucose. Thus, by using the Lugol's solution which only acts as indicator for starch and not glucose, we could tell part which area floats around with glucose and starch substances. Lugol's solution works as an indicator because it will stain starches due to iodine's interaction with the coil structure of the polysaccharide.
The starch indicator solution will diffuse out of the bag (cell) into the beaker, changing the color of the starch solution to a blue, purple, or black color (assuming that it's iodine). The color of the indicator solution inside the bag will not change, because only the glucose can diffuse into the bag, but the starch cannot diffuse into the bag.
Yes, it is important to dry a beaker before collecting a solution as any remaining liquid in the beaker could dilute the solution being collected, affecting the concentration and accuracy of the solution. Drying the beaker also helps to ensure that the solution is not contaminated by any residual water or impurities from the beaker.
Copper plated the spoon because it acted as the cathode in the electrochemical cell formed between the spoon and the copper solution. The beaker did not plate because it likely did not provide the necessary conditions for the reduction reaction to occur on its surface.
If the glucose, starch, and iodine pass through the cell membrane, you can perform a color change test. The presence of glucose will show a positive result with Benedict's reagent turning orange/red. The presence of starch will show a positive result with iodine turning blue/black.
After transferring 50 grams of the 1.7 M NaCl solution to a new beaker, the final amount of NaCl in the original beaker will be 50 grams. To find the new molarity, you would first calculate the new moles of NaCl in the beaker, then divide by the total volume of the solution in liters. The molarity will be reduced in the original beaker due to the dilution from transferring a portion of the solution.