Hachi's posts

Posted in it's literally just biology Posted 7 years ago

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Turgid cells push against each other → stiffens tissue

Posted in it's literally just biology Posted 7 years ago

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Flaccid (limp, results from water loss) vs. turgid (firm, due to water uptake)

Posted in it's literally just biology Posted 7 years ago

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Water in hollow nonliving xylem cells (tracheids, vessel elements) is under negative pressure (tension)

Posted in it's literally just biology Posted 7 years ago

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Maintains stiffness of plant tissue, driving force for cell elongation

Posted in it's literally just biology Posted 7 years ago

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Protoplast (living part of cell and plasma membrane) presses against cell wall → turgor pressure

Posted in it's literally just biology Posted 7 years ago

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Water in living cells is under positive pressure to osmotic uptake of water

Posted in it's literally just biology Posted 7 years ago

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Pressure potential (ѰP) - physical pressure on a solution, positive or negative relative to atmospheric pressure

Posted in it's literally just biology Posted 7 years ago

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As solute concentration increases, ѰS decreases (more negative)

Posted in it's literally just biology Posted 7 years ago

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Solute/osmotic potential (ѰS) - directly proportional to molarity, always negative

Posted in it's literally just biology Posted 7 years ago

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Water potential equation: Ѱ = ѰS + ѰP

Posted in it's literally just biology Posted 7 years ago

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Internal pressure of a living plant cell due to osmotic uptake of water = 0.5 MPa

Posted in it's literally just biology Posted 7 years ago

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Pure water in a container open to the atmosphere under standard conditions (sea level, room temp) has Ѱ = 0 MPa

Posted in it's literally just biology Posted 7 years ago

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Measured in megapascals. Ability of free water to do work

Posted in it's literally just biology Posted 7 years ago

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Includes effects of solute concentration and physical pressure