Cells

3. Requires the cell to use energy in order to move molecules across the membrane
5. A rigid structure found in only plant cells
7. When concentrations are equal
10. The energy required to start a reaction
12. A network of fibers that hold the cell together
13. The process of making molecules using absorbed molecules
14. An organelle that holds the main DNA of the cell
17. A structure in the nucleus that assembles ribosomes
18. The movement of molecules from higher concentration to lower concentration
20. The study of cells
21. A solution whose concentration of solute is the same as inside the cell
22. The theory that cells are the basic units of structure and function for all life
23. A jelly-like substance that protects cell organelles inside the cell membrane
24. Cells that do not have a nucleus or any membrane bound organelles
25. An organelle that is only found in animal cells, and is responsible for hydrolysis reactions

1. A solution whose concentration of solute is lower than inside the cell
2. Molecules that do not dissolve in water
4. The barrier around all cells that protects them from the outside world
6. A non-membrane bound organelle that is responsible for protein synthesis
8. A solution whose concentration has a higher concentration of solute than inside the cell
9. Does not require the cell to use energy
11. A membrane bound pouch
15. Cells that have a nucleus and membrane bound organelles
16. An organelle that converts nutrients into energy
19. Molecules that do not dissolve in water