AP Biology - Water

What is the following equation used to find: -iCRT

• water potential

• solute potential

• cell potential

• electrical potential

In an open container, the pressure potential is _____________.

• 1

• 2

• 3

• 0

For a cell in an open container, the solute potential is _____________ the water potential.

• less than

• greater than

• equal to

• not related to

If a plant cell’s ΨP=3.2 bars and its ΨS=-4.3 bars, what is the resulting Ψ?

• -1.1

• 1.1

• 7.5

• 13.76

The plant cell with a Ψ of -1.1 is placed in a beaker of sugar water with ΨS of -2.3 bars. In which direction will the net flow of water be?

• inside the cell

• outside the cell

• no direction because the cell is at equilibrium

• There is not enough information to answer this question.

The value for Ψ in root tissue was found to be -1.2 bars. If you place the root tissue in a 0.1 M solution of sucrose at 20°C in an open beaker, what is the Ψ of the solution? (R=0.0831 liter-bars/mole K, K=C +273)

• -2.43

• 2.43

• 1.43

• -0.33

The value for Ψ in root tissue was found to be -1.2 bars. If you place the root tissue in a 0.1 M solution of sucrose at 20°C in an open beaker, what is the Ψ of the solution, and in which direction would the net flow of water be? (R=0.0831 liter-bars/mole K, K=C +273)

• inside the roots

• outside the roots

• The roots are at equilibrium with the solution.

• There is not enough information to calculate the solution to this problem.

Which way will the water move if the Ψ inside the cell is -3.8 and the Ψ outside the cell is -1.2?

• outside the cell

• inside the cell

• The water will not move because the cell is at equilibrium with its environment.

• There is not enough information to answer this question.

Which way will the water move if the Ψ inside the cell is -2.2 and the Ψ outside the cell is -2.2?

• outside the cell

• inside the cell

• The water will not move because the cell is at equilibrium with its environment.

• There is not enough information to answer this question.

Which way will the water move if the Ψ inside the cell is -2.2 and the Ψ outside the cell is -1.2?

• outside the cell

• inside the cell

• The water will not move because the cell is at equilibrium with its environment.

• There is not enough information to answer this question.

Tags

NGSS.HS-LS1-3