Chapter 3: Diffusion, Osmosis and Active Transport: Volume Ratio

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7 Terms

1
Define Diffusion.
It is the "net movement of ions or molecules" from a region of "higher concentration to a region of low concentration" "down a concentration gradient".
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2
Cell
________ becomes flaccid when water moves out of the ________ via osmosis.
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3
Define Osmosis.
It is the "movement of water molecules" from a "solution of higher water potential to a solution of lower water potential" "through a partially permeable membrane".
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4
Define Active Transport.
It is the process in which "energy is used" to "move the particles" of a substance "against a concentration gradient" from a region where they are in "low concentration to a region where they are in high concentration".
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5
What are turgid cells?
They are described as when they are "swollen" due to a "high water content inside the cell" and are "causing turgor pressure".
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6
What is turgor Pressure?
It is the "pressure on the cell wall" from the cell membrane pushing upon it.
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7
What is plasmolysis?
It is the "shrinkage of cells" when "no or too little water is present inside".
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