lab test 2-movement of molecules/NaCl solution/potatoes
Terms
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- diffusion is the net movement of substances from low to high concentration or high to low concentration?
- high concentration to low concentration
- is diffusion faster in a gel or a liquid? and why?
- liquid because liquid molecules are farther apart
- is diffusion faster in hot or cold water? and why?
- hot, because the higher the temp the faster molecules move in water
- what moved through the baggie starch or iodine? and by what process?
- iodine, diffusion
- what were the two substances in the NaCl solution?
- water and sodium chloride
- what was the solute?
- sodium chloride
- what was the solvent?
- water
- what was left over in the test tube after the reaction?
- water
- how do potato slices feel if the cells are soaked in distilled water?
- stiff
- is distilled water hypotonic, isotonic, or hypertonc to the potato cells?
- hypotonic
- Have the potato cells lost or gained water?
- gained
- Are the potato cells turgid or plasmolyzed
- turgid
- is the 10% NaCl hypotonic, isotonic, or hypertonic to the potato cells
- hypertonic
- what molecule moves in or out of the potato cells? and by what process?
- water,osmosis
- How do potato slices feel if the cells have been soaked in 10% NaCl?
- limp
- what solution is hypotonic to blood cells? distilled water, 0.9 NaCl, or 10% NaCl?
- distilled water
- what solution is hypertonic to blood cells? distilled water, 0.9 NaCl, or 10% NaCl?
- 10% NaCl
- what solution is isotonic to blood cells?
- 0.9 NaCl
- Do blood cells gain or lose in a hypotonic solution?
- gain
- Are the cells crenated or hemolyzed?
- hemolyzed
- how does a test tube of blood appear when cells are in a hypotonic solution?
- clear
- what effect does an isotonic solution have on blood cells?
- has normal appearence due to no net gain or loss of water
- do blood cells gain or lose water in a hypertonic solution?
- lose
- what molecule moved in or out of cells? and by what process?
- water crenation
- how does a test tube of blood appear when cells are in a hypertonic solution?
- cloudy