Chapter 7 Vocabulary

3. modifies, sorts and packages proteins
4. produces ribosomes
5. diffusion of water through a selectively permeable membrane
9. when comparing two solutions, the solution with the greater concentration of solutes
10. supports and protects the cell, only found in plant cells
12. process by which molecules tend to move from an area where they are more concentrated to an area where they are less concentrated
13. produces food through photosynthesis, only found in plant cells
16. unicellular organism lacking a nucleus
19. transports materials throughout the cell
21. control center of the cell
23. organism whose cells contain nuclei
24. organelle that regulates what enter and leaves the cell
25. group of similar cells that perform a particular function
26. produces proteins
27. process by which organisms maintain a relatively stable internal environment

1. powerhouse of the cell
2. covers and protects the nucleus
5. group of organs that work together to perform a specific function
6. group of tissues that work together to perform closely related functions
7. a substance that only allows certain materials though it
8. digests and removes wastes
11. double layered sheet that forms the core of nearly all cell membranes
13. basic unit of all forms of life
14. stores food, water and wastes
15. device that produces magnified images of structures that are too small to see with only the unaided eye
17. assists during mitosis, only in animal cells
18. when comparing two solutions, the solution with the lesser concentration of solutes
20. jellylike substance that protects the organelles
22. idea that all living things are composed of cells, that cells are the basic unit of structure and function in living things, and that new cells are only produced from existing cells
24. gives instructions for the cell's activities