4. Which has a higher concentration, 100 mL of water with 1 gram of sugar dissolved, or 100 mL of water with 10 grams of sugar dissolved?
5. Recall from Unit 1 that a solution is made up of a solute and a solvent.
What are the definitions of these two terms?
Solution:
Solvent:
6. When substances diffuse, they move from an area of ___________ concentration to an area of _________________ concentration.
7. True / False: In diffusion, no additional energy is required by the cell.
8. What is dynamic equilibrium?
9. What are two types of materials that move across a membrane by facilitated diffusion?
10. What general type of cell transport does not require any energy from the cell?