Diffusion and Osmosis KEY - See Original

Across

3. ACTIVE—transport that requires energy

4. HYPERTONIC—solution has a greater concentration of molecules

7. PASSIVE—type of transport that does not require energy

9. MEMBRANE—outer boundary of the cell

11. IODINE—turns purple in the presence of starch, indicator

12. DIFFUSION—movement of molecules from high to low concentration

13. GRADIENT—a difference in concentrations

14. PERMEABLE—lets some things through; selectively _____

15. HYPOTONIC—solution has a lesser concentration of molecules

Down

1. PROTEIN—channel ____; helps move materials across membrane

2. PHOSPHOLIPID—a major component of the cell membrane

5. ENDO—prefix that means "inside"

6. OSMOSIS—diffusion of water

8. EQUILIBRIUM—whem molecules are evenly spread out

10. ENDOCYTOSIS—taking in of large particles by the cell