Cell Terminology

4. Small organelles filled with enzymes that function as the cell's cleanup crew
6. Network of protein filaments; made of microtubules and microfilaments
10. The diffusion of water through a selectively permeable membrane
11. Small particles of RNA and protein found throughout the cytoplasm in all cells
12. Strong supporting layer around the cell membrane
13. Stack of flattened membranes that prepares substances for storage or removal from the cell
14. Type of transport where movement of materials across the membrane doesn't require energy
15. Group of cells that performs a similar function
19. The powerhouse of the cell
22. Organelle that captures the energy from sunlight and converts it into food
23. Located near the nucleus and helps to organize cell division; not found in plant cells
24. Large membrane-enclosed structure that contains the cell’s genetic material
25. Type of transport where materials move against a concentration difference; requires energy

1. Cell that encloses its DNA in a nucleus and has membrane-bound organelles
2. the process by which particles move from an area of high concentration to an area of low concentration
3. Thin barrier surrounding a cell
5. The fluid portion of the cell outside the nucleus
7. Internal membrane system that helps with protein synthesis and the creation of membrane lipids
8. Relatively constant internal physical and chemical conditions
9. Large, saclike, membrane-enclosed structure used for storage
16. The process of taking material into the cell by means of infoldings, or pockets in the cell membrane
17. Group of tissues working together
18. Type of diffusion in which molecules use protein channels to cross a membrane they wouldn't ordinarily be able to cross
20. Membrane of the vacuole surrounding the material fuses with the cell membrane, forcing the contents out of the cell
21. Cell that has free-floating DNA and few organelles