Water Potential 2

A sucrose solution in a beaker has a solute potential of -4 bars.  A cell with a solute potential of -2 bars is placed in the beaker.  What will be the direction for the net movement of water?

• into the cell
• out of the cell
• there will be no net movement

A sucrose solution in a beaker has a solute potential of -4 bars.  A cell with a solute potential of -2 bars is placed in the beaker.  What is the water potential of the solution in the beaker?

• 0 bars
• 4 bars
• -2 bars
• -4 bars

What keeps this plant cell from bursting?

• the cell wall
• it's vacuole
• the membrane
• the nucleus

Tags

NGSS.MS-LS1-2

At 27°C, a cell containing 0.3M glucose is in equilibrium with its surrounding solution containing 0.25M glucose in an open container. What is the cell’s ΨP?

• -7.45 bar
• -3.75 bar
• -5.00 bar
• -10.25 bar

At 27°C, a cell with ΨP of 6 bars is in equilibrium with the surrounding 0.45M solution of sucrose in an open beaker. What is the molar concentration of sucrose in the cell?

• 0.24 M
• 0.15 M
• 0.50 M
• 0.10 M

The value for Ψ in root tissue was found to be -4.3 bars. If you take the root tissue and place it in a 0.15 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?

• Ψ of the solution is -3.67 bars; net flow of water is into the root tissue.
• Ψ of the solution is -4.3 bars; net flow of water is equal in both directions.
• Ψ of the solution is -2.5 bars; net flow of water is into the solution.
• Ψ of the solution is -5.0 bars; net flow of water is out of the root tissue.

A cell is in equilibrium with its surroundings. The molarity of the surrounding solution is 0.5M. Calculate the solute potential of the surrounding solution.

• -5.0 bars
• -15.0 bars
• -11.3 bars
• 0.0 bars

1. A potato cell has a solute potential of –3.5 bars.  It is placed in beaker that contain 0.3 M solution of glucose at 27 °C. Calculate the solute potential of the glucose solution.

• -5.0 bars
• -7.5 bars
• -2.0 bars
• -10.0 bars

What questions do you have about water potential?