Why Does Lettuce Wilt If It Sits in Salad Dressing

question 37

Multiple Choice

Why does lettuce wilt if it sits in salad dressing for awhile?

• A) The salt in the dressing pulls the water out of the plant.
• B) By osmosis, the water flows down the salt gradient from inside the cell to outside.
• C) By active transport, the water flows down the salt gradient from inside the cell to outside.
• D) It doesn't, because a cell is impermeable to water so the water doesn't move.
• E) By diffusion, salt moves into the cells of the plant.