Biology Crossword

2. Water diffuses into and out of the cell at equal rates, so there is no net movement of water
3. Pressure that water molecules exert against the cell wall
6. the process by which a substance is released from the cell through a vesicle that transports the substance to the cell surface and then fuses with the membrane to let the substance out of the cell
7. The pouch then pinches off from the cell membrane and becomes a membrane-bound organelle
9. Water diffuses out of the cell until equilibrium is established
13. a protein that transports substances across a cell membrane
17. molecules that cannot readily diffuse through the cell membrane
18. Concentration of molecules will be the same throughout the space the molecules occupy
19. Movement without any input of energy
20. The movement of large particles or whole cells

1. transports Na+ ions and K+ ions up their concentration gradients
4. Water molecules diffuse a cell membrane from an area of higher concentration to an area of low concentration
5. difference in the concentration of molecules across a distance
8. Organelles that remove water
10. Cells shrink away from the cell walls, and turgor pressure is lost
11. Involves the transport of solutes or fluids
12. Water diffuses into the cell equilibrium is established
13. The bursting of cells
14. allows lysosomes to fuse with the vesicles that contain the ingested bacteria and viruses
15. a complex of protein molecules in a cell membrane that forms a pore through which ions can pass
16. Movement of molecules are of high concentration