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Chapter 7 - Cell Structure and Function
Across
1. when comparing two solutions, the solution with the lesser concentration of solutes
4. process by which a cell releases large amounts of material
5. unicellular organism lacking a nucleus
6. cell organelle filled with enzymes needed to break down certain materials in the cell
7. diffusion of water through a selectively permeable membrane
11. network of protein filaments within some cells that helps the cell maintain its shape and is involved in many forms of cell movement
12. movement of specific molecules across cell membranes through protein channels
13. material inside the cell membrane—not including the nucleus
14. granular material visible within the nucleus; consists of DNA tightly coiled around proteins
15. internal membrane system in cells in which lipid components of the cell membrane are assembled and some proteins are modified
Down
2. process in which extensions of cytoplasm surround and engulf large particles and take them into the cell
3. small particle in the cell on which proteins are assembled; made of RNA and protein
4. process by which a cell takes material into the cell by infolding of the cell membrane
8. when comparing two solutions, the solution with the greater concentration of solutes
9. process by which molecules tend to move from an area where they are more concentrated to an area where they are less concentrated
10. organism whose cells contain nuclei