A cell is filled with solutes and water. Imagine a cell filled with 40% glucose and submerged in distilled water. (The cell membrane is permeable to glucose)
Complete this diagram below to help you understand the concentrations, and then answer the questions below. Use different colored dots to represent glucose and water inside & outside the cell. For example, you know the cell is 40% glucose (indicate this using 4 colored dots to represent glucose). What will the remaining dots inside and outside the cell be?
1. Where is the sugar concentration greater?
2. Where is the water concentration greater?
3. What will move by diffusion? Glucose.
4. In what direction will the net diffusion be, into or out of the sack?
5. Is this movement with gradient, or against the gradient?
6. What will move by osmosis? Water.
7. In what direction will the net osmosis be, into or out of the sack?
8. Is this movement with the gradient or against the gradient?
9. Is the environment isotonic, hypotonic, or hypertonic?
10. Is the cell isotonic, hypotonic, or hypertonic?