1. what is osmosis?
the process of small molecules crossing a semi-permeable membrane of water molecules from high to low concentration.
2. what is diffusion?
the movement of molecules from high to low concentration.
3. what is the difference between the two?
osmosis only lets water molecules go from high to low concentration and
diffusion lets small simple molecules go through from high to low concentration.
4. Is energy used in either process?
no energy is not need in either process only if the cell is moving materials across the membrane using an active transport that requires energy.
5. what is a concentration gradient? give an example.
the gradual difference in concentration of a dissolved substance ina solution between a region of high density and one of lower density.
EX:skunk stink
when a person gets closer the stink gets stronger so the "stink molecules" are more highly concentrated closer to the source.
6. How do the terms solute and solvent fit in learning about osmosis and diffusion?
solute is the substance being dissolved while the solvent is in charge of dissolving and osmosis and diffusion are somewhat similar.
7. Is water always a solvent ?why or why not?
yes because the solvent dissolves so in order for it to do that it needs water.
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