Cells

2. A rigid structure that gives protection, support, and shape to plant cells
3. A solution with a higher concentration of dissolved particles compared with another solution
4. Forms a boundary between the cell and its surrounding enviornment; it also controls the passage of materials into and out of the cell
5. 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
6. A solution with a lower concentration of dissolved particles compared with another solution
8. Diffusion of molecules assisted by protein channels that pierce a cell membrane
9. Tiny organelles that link amino acids together to form proteins
10. An action that does not require energy
11. A solution that has an equal concentration of dissolved particles compared with another solution
12. Spaces containing enzymes that process, sort, and deliver proteins
13. energy requiring movement of molecules across a membrane from a region of low concentration to a region of high concentration
15. Movement of large particles out of the cell
16. Movement of large particles into the cell

1. Membrane bound structure that is needed to perform a certain process in a cell
3. Water loving; attracted to water
4. A jellylike substance that contains dissolved molecular building blocks
5. Different in the concentration of a substance from one location to another
7. A fluid filled sac used for storage of materials needed by a cell
14. Movement of water across a cell membrane
17. Basic unit of life