Question 16
Cell and Its EnvironmentUse the diagram of the yam set-up to answer: Which of the following results is to be expected if the set-up is left for several hours?
- A.decrease in the size of the yam
- B.movement of the salt solution into the water
- C.decrease in the volume of water inside the yam
- D.movement of water from the salt solution into the yam
Show the answer and explanation
Answer: C (decrease in the volume of water inside the yam)
Explanation
The water inside the hollow yam is more dilute than the salt solution outside. Water moves out through the yam by osmosis, so the water inside goes down.