Cells

2. Membrane bound structure that is needed to perform a certain process in a cell
5. Water loving; attracted to water
7. A jellylike substance that contains dissolved molecular building blocks
8. Forms a boundary between the cell and its surrounding enviornment; it also controls the passage of materials into and out of the cell
9. Diffusion of molecules assisted by protein channels that pierce a cell membrane
10. A solution that has an equal concentration of dissolved particles compared with another solution
11. Basic unit of life
12. A fluid filled sac used for storage of materials needed by a cell
13. Spaces containing enzymes that process, sort, and deliver proteins
14. An action that does not require energy
17. Movement of large particles out of the cell
18. A solution with a lower concentration of dissolved particles compared with another solution
19. Movement of water across a cell membrane

1. A theory that states all organisms are made of cells, all cells are produced by other cells, and the cell is the basic unit of life
3. Different in the concentration of a substance from one location to another
4. Movement of large particles into the cell
6. A solution with a higher concentration of dissolved particles compared with another solution
8. A rigid structure that gives protection, support, and shape to plant cells
15. energy requiring movement of molecules across a membrane from a region of low concentration to a region of high concentration
16. Tiny organelles that link amino acids together to form proteins