

Water Potential and Absorption in Plants
Flashcard
•
Biology
•
12th Grade
•
Practice Problem
•
Hard
masakala tzudir
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22 questions
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1.
FLASHCARD QUESTION
Front
What is water potential and how is it represented?
Back
Water potential is a measure of water’s potential to do work, represented by the Greek letter Psi (Ψ) and measured in bars, pascals, or atmospheres.
2.
FLASHCARD QUESTION
Front
How does water move in relation to water potential?
Back
Water always moves from an area of high water potential to an area of low water potential.
3.
FLASHCARD QUESTION
Front
What is the water potential of pure water at normal temperature and pressure?
Back
The water potential of pure water at normal temperature and pressure is zero.
4.
FLASHCARD QUESTION
Front
What are the components of water potential?
Back
The components of water potential are matrix potential (Ψm), solute potential (Ψs), and pressure potential (Ψp).
5.
FLASHCARD QUESTION
Front
What is the equation for water potential in plant cells?
Back
The equation for water potential in plant cells is Ψw = Ψs + Ψp.
6.
FLASHCARD QUESTION
Front
What is solute potential (Ψs)?
Back
Solute potential (Ψs) is the amount by which the water potential is reduced due to the presence of solute, expressed in negative values.
7.
FLASHCARD QUESTION
Front
What is pressure potential (Ψp)?
Back
Pressure potential (Ψp) is the pressure exerted by the plant cell wall on the cellular contents, usually positive and related to turgor pressure.
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