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6. If a substance goes from a low to high concentration it is called
- Active transport
- Diffusion
- Osmosis
7. What is diffusion of water in and out of cells?
- Osmosis
- Diffusion
- Active transport
8. Moving up the concentration gradient is...
- Going from a low concentration to a higher one
- Going from a high concentration to a lower one
9. Active transport in natural
- False, it requires energy
- True, it does not require energy
10. Molecules move randomly however they tend to go to areas of lower concentration where there is more room to move
11. What is it called when a cell needs to move a substance up a concentration gradient? (from low to high)
- Osmosis
- Active transport
- Diffusion
12. In diffusion, the membrane only lets certain substances pass through, this is called
- Selectively permeable
- Permeable
13. If a substance goes from a high concentration to a lower one it is called...
- Diffusion
- Active transport
- Osmosis
14. Diffusion of water molecules through the cell membrane...
- Osmosis
- Diffusion
- Active transport
15. Can water, oxygen and carbon dioxide diffuse in and out of cells?