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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 |