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WH 7th science
science test 3
| Question | Answer |
|---|---|
| movement of particles from an area of high to low conc. | diffusion |
| the diffusion of water threw a semi-permiable membrane | osmosis |
| semi-permiable | only certain things can pass threw it |
| particles can travel by | passive transport / active transport |
| passive transport | movement of particles across the cell membrane without use of energy |
| movement of particles with use of energy | active transport |
| 2 types of active transport | exocytosis/endocytosis |
| process by which cell surrounds a large particle and encloses it to bring it in | endocytosis |
| process when large particle leaves the cell | exocytosis |
| state of balance | equilibrium |
| 3 types of solutions a cell can be placed in: | hypertonic/hypotonic/isotonic |
| the solute conc. is greater on the outside of cell | hypertonic |
| solute conc. is greater on the inside of the cell | hypotonic |
| solute conc. is equal | isotonic |