Cell Terminology

5. Located near the nucleus and helps to organize cell division; not found in plant cells
8. Large, saclike, membrane-enclosed structure used for storage
10. Type of transport where materials move against a concentration difference; requires energy
12. The fluid portion of the cell outside the nucleus
14. Small organelles filled with enzymes that function as the cell's cleanup crew
15. The process of taking material into the cell by means of infoldings, or pockets in the cell membrane
18. Internal membrane system that helps with protein synthesis and the creation of membrane lipids
19. the process by which particles move from an area of high concentration to an area of low concentration
22. Cell that encloses its DNA in a nucleus and has membrane-bound organelles
23. Organelle that captures the energy from sunlight and converts it into food
25. Large membrane-enclosed structure that contains the cell’s genetic material

1. Network of protein filaments; made of microtubules and microfilaments
2. Cell that has free-floating DNA and few organelles
3. Small particles of RNA and protein found throughout the cytoplasm in all cells
4. The diffusion of water through a selectively permeable membrane
6. Relatively constant internal physical and chemical conditions
7. Type of transport where movement of materials across the membrane doesn't require energy
9. Membrane of the vacuole surrounding the material fuses with the cell membrane, forcing the contents out of the cell
11. Type of diffusion in which molecules use protein channels to cross a membrane they wouldn't ordinarily be able to cross
13. Thin barrier surrounding a cell
16. Stack of flattened membranes that prepares substances for storage or removal from the cell
17. The powerhouse of the cell
20. Group of tissues working together
21. Strong supporting layer around the cell membrane
24. Group of cells that performs a similar function