I. Suppose you were having a party. You wish to serve crisp celery, but your cel
ID: 216236 • Letter: I
Question
I. Suppose you were having a party. You wish to serve crisp celery, but your celery has become are closed. What might you do to make the celery crisp (turgid) again? Explain your a limp, and the stores Refer to the diagram below to answer the fellowing questiens, The solutions in the nwo arms of the U-tube are separated by a membrane that is permeable to water and but not to sacrose Side A is filed with a solution of 40% sucrose. Side B is filled with 20% sucrose. Selectively permeable membrane with respect to that in side B. c) saturated 2. Initially, the solution on Side A, is a)hypotonic b) isotonic d) hypertonic 3. Will the net flow of water be: Answer a) A to B b) B to A 4. Explain how a hydration shell will affect the movement of water. and 5. After the system reaches equilibrium, what changes are observed? Choose Two Answers a) The concentration of sucrose is equal on the both sides. b) The concentration of sucrose is higher in side A than in side B. c) The concentration of sucrose is increased in side B d) The water level is unchanged in both sides. e) The water level is higher in side A than in side B.Explanation / Answer
1. To make the celery crisp, dip it into water and it will absorb water due to osmotic difference and again it will become crisp.
2. d. The solution on side A has higher concentration wrt solution b.
3. b. Net flow will be from solution B to A i.e. water will move from solution B to A to make the concentrations equal on both the sides.
4. The formation of hydration shell around the solute particle will decrease the water movement. The amount of water activity decreses in direct proportion with amount of solute added. Hence movement of water will also restrict.
5. a and e, The sucrose concentration will be same on both sides due to transfer of water molecules from side B to side A which will also increse the water level in the side A.