AP Biology Water Potential Problems
Flashcard
•
Biology
•
9th - 12th Grade
•
Practice Problem
•
Hard
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the water potential of pure water?
Back
0
2.
FLASHCARD QUESTION
Front
What is the formula for calculating water potential?
Back
Water Potential (ψ) = Pressure Potential (ψp) + Solute Potential (ψs)
3.
FLASHCARD QUESTION
Front
If a potato cube has a pressure potential of 7.2 bars and a solute potential of -9.8 bars, what is its water potential?
Back
-2.6 bars
4.
FLASHCARD QUESTION
Front
What does a negative water potential indicate about a solution?
Back
It indicates that the solution has a lower potential for water movement compared to pure water.
5.
FLASHCARD QUESTION
Front
How do you calculate solute potential?
Back
Solute Potential (ψs) = -iCRT, where i = ionization constant, C = molar concentration, R = pressure constant (0.0831 liter bar per mole per K), and T = temperature in Kelvin.
6.
FLASHCARD QUESTION
Front
If a cell has a pressure potential of 3 bars and a solute potential of -4.5 bars, what is the water potential?
Back
-1.5 bars
7.
FLASHCARD QUESTION
Front
What is the significance of pressure potential in plant cells?
Back
Pressure potential contributes to turgor pressure, which helps maintain cell structure and rigidity.
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