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?



Answer :

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