16. Isotonic external medium

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4 Terms

1
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What does it mean if there is an isotonic external medium?

External medium has same WP as cell contents, so no net movement of water by osmosis

2
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What are animal cells?

Naturally isotonic medium -> homeostasis maintains this to prevent water loss / gain

3
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What are plant cells in isotonic mediums?

Have a pressure total of 0kPa and are flaccid

4
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What 2 variables are impacted when plants have an isotonic meadium?

WP = Solute potential, when this occurs