Unit 4: Cell Vocab

4. When comparing two solutions, the solution with the greater concentration of solutes
7. Unicellular organism that lacks a nucleus
8. When the concentration of two solutions is the same
9. Specialized structure that performs important cellular functions within a cell
10. Basic unit of all forms of life
14. Process by which cells release large amounts of material
15. Process of diffusion in which molecules move across the membrane through membrane channels

1. The movement of molecules across the cell membrane without using cellular energy
2. Process by which particles tend to move from an area where they are more concentrated to an area where they are less concentrated
3. When comparing two solutions, the solution with the lesser concentration of solutes
5. The process of taking material into the cell by means of infoldings, or pockets, of we the cell membrane
6. The movement of materials against a concentration difference; requires energy
11. When the concentration of the substance on both sides of the membrane is the same
12. Diffusion of water through a selectively permeable membrane
13. Organism whose cells contain a nucleus