cells vocab

2. transport process that occurs when a cell engulfs material
6. transport across a membrane that DOES NOT require energy
8. transport across a membrane that requires energy and a protein pump to move molecules from low to high concentration
9. made of fatty acids and glycerol, they are the units that build cell membranes or boundaries
11. passive transport of any substance across a semipermeable cell membrane
13. diffusion of water
16. passive transport across a membrane through a protein channel that does not require energy
17. Unicellular or multicellular organisms that have a nucleus
19. membrane that contains the cell and separates the inside of the cell from its surroundings

1. solution in which the concentration is lower outside of the cell than inside of the cell
3. Theory that all organisms are made of cells
4. solution in which the concentration is higher outside of the cell than inside of the cell
5. the ability to allow certain molecules to enter or exit the cell while keeping others in or out
7. transport process that occurs when a cell expells materials that are too large to pass through the membrane
10. Small unicellular primitive organisms
12. Small specialized structure within a cell
14. organelle that is responsible for controlling all cellular activities
15. solution in which the concentration inside the cell is the same concentration outside of the cell
18. The smallest unit of life.