Passive and Active Transport

2. The net movement of very small particles, like gases, from high to low concentration
5. A process used by cells to take in substances where the membrane folds in to create a vesicle
7. A type of endocytosis when cells "eat" by taking in large solid particles
9. The difference in concentration of a substance between 2 areas
10. Cellular energy produced during photosynthesis and used for active transport
11. A type of protein located in the cell membrane that helps move substances in and out of the cell
13. A type of endocytosis when cells "drink" by taking in liquid particles
14. A type of protein located in the cell membrane that helps move electrically charged ions from high to low concentration
15. The movement of water molecules across a membrane from high concentration to low concentration
17. A type of diffusion that uses proteins to aid in the diffusion of particles across the cell membrane
20. The random movement of molecules from areas of high concentration to low concentration

1. Water entering a cell from a water rich environment
3. A process by which cells expel compounds to the surrounding by fusing vesicles with the membrane
4. Water exiting a cell into an environment with low water concentration
5. A state where there are no measurable changes in substance concentration over time
6. A type of endocytosis when cells identify and bind to specific molecules
8. Water fearing tail of a phospholipid
12. The movement of a substance across a membrane from low concentration to high concentration that requires the use of energy
16. The movement of substances across a membrane from high concentration to low concentration that does not require energy
18. Net movement of water into and out of the cell is equal
19. A type of protein located in the cell membrane that changes shape to allow large molecules to cross the cell membrane