A. what does the high level of sucrose solution in the tube mean/show? B. Water
ID: 142849 • Letter: A
Question
A. what does the high level of sucrose solution in the tube mean/show?B. Water in the Beaker remained clear. Why was there no sucrose in the beaker with water?
C. In what direction does water move through a membrane ?
D. Is this experiment showing simple diffusion of a dye or osmotic rate? Why? OSlanest Cell size Im the iving wond 8. Use the Osmometer set up to answer the questions on the next page. (2 pts) A. What does the high level of sucrose solution in the tube mean/show? water in the beaker remained clear, why was there no sucrose in the beaker with water? Level of sucrose solution B. Cellulose membrane containing 30% sucrose solution was submerged in a beaker with water c C. In what direction does water move through a membrane D. Is this experiment showing simple diffusion of a dye or osmotic rate? Why? Beaker with water
Explanation / Answer
A. The high level of sucrose solution in the tube means:
a)There is movement of water in the tube because of osmosis (Osmosis is the spontaneous net movement of water molecules across a selectively permeable membrane from a high water concentration to low water concentration to reach an equilibrium).
b) The sucrose molecule will not leave the tube because it cannot pass the selectively permeable membrane of cellulose as sucrose is a heavy molecule and only solvent like water can pass through it easily.
B)There was no sucrose in the beaker with water because sucrose is a disaccharide which cannot pass through a selectively permeable membrane (is a membrane which allows certain molecules or ions to pass through it by means of active or passive transport).
C)Water will move from beaker to the tube containing sucrose solution means upward direction through the selectively permeable membrane of cellulose.
D) This experiment showing Osmotic rate as concentration gradient is created by the movement of water molecules from the beaker to the tube.When equlibrium is reached water continues to flow,but flows both ways in equal amounts therefore stabilizing the solution.
Related Questions
drjack9650@gmail.com
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.