Biology Chapter 5 Crossword Puzzle

2. when a substance causes a process to speed up
5. the internal balance of a system that keeps conditions stable
9. post office of the cell
11. the movement of molecules across a membrane while not using chemical energy
12. powerhouse of the cell
13. when a substance causes a process to slow down
14. a type of vacuole
16. the general material of the nucleus
17. found inside chloroplasts
18. cells are organized into
20. the parts inside a cell
24. the solution that is less concentrated than the cytoplasm of the cell
28. an organism with cells that contain membrane-surrounded cells
31. breaks down toxic substances in liver cells
32. extension of the cytoskeleton
34. area of nucleus where ribosomes are assembled
35. tissues that work together to perform a specific function
36. when cells and the solution they are in have the same concentration of solutes
39. hydrophilic and hydrophobic layers of a lipid
40. cells come only from other preexisting cells
41. protects the cell
43. a type of pigmented plastid
44. studded with ribosomes

1. a system of fibers that help maintain the cell's shape
3. consists of everything in thprokaryotesane except the nucleus
4. extension of the cytoskeleton
6. an organism whose organelles lack surrounding membranes
7. the water pressure inside the central vacoule
8. an organism made of only one cell
10. made of 2 or more cells
15. molecules move through the cell membrane with the help of transport proteins
19. builds parts for the cytoskeleton
21. a solution that is more concentrated than the cytoplasm of a cell
22. control center of the cell
23. found in eukaryotes and prokaryotes
25. the diffusion of a solvent
26. found mostly in plants
27. the movement of molecules across a membrane using chemical energy
29. surrounds each cell
30. contains pores for materials to pass through
33. a type of colorless plastid
37. found in prokaryotes
38. a group of organs that work together
42. when unicellular organisms work together