Cell Membranes and Transport Honors Biology ~ Edgar

Sugar Dialysis Tube Question : If you place various concentrations (0M – 1M) of sucrose solution in dialysis bags placed in cups of distilled water what will happen to their mass over 30 minutes? Hypothesis ?

Question : If you place various concentrations (0M – 1M) of sucrose solution in dialysis bags placed in cups of distilled water what will happen to their mass over 30 minutes?

Hypothesis ?

Osmosis

Osmosis

Concept Check If a Paramecium were to swim from a hypotonic environment to an isotonic one, would the activity of its contractile vacuole increase or decrease? Why?

If a Paramecium were to swim from a hypotonic environment to an isotonic one, would the activity of its contractile vacuole increase or decrease? Why?

Concept Check This diagram represents osmosis of water across a semipermeable membrane. The U-tube on the right shows the results of the osmosis. What could you do to level the solutions in the two sides of the right hand U-tube? Add more water to the left hand side. Add more water to the right hand side. Add more solute to the left hand side. Add more solute to the right hand side. 0

This diagram represents osmosis of water across a semipermeable membrane. The U-tube on the right shows the results of the osmosis. What could you do to level the solutions in the two sides of the right hand U-tube?

Add more water to the left hand side.

Add more water to the right hand side.

Add more solute to the left hand side.

Add more solute to the right hand side.

Answer This diagram represents osmosis of water across a semipermeable membrane. The U-tube on the right shows the results of the osmosis. What could you do to level the solutions in the two sides of the right hand U-tube? c) Add more solute to the left hand side. 0

This diagram represents osmosis of water across a semipermeable membrane. The U-tube on the right shows the results of the osmosis. What could you do to level the solutions in the two sides of the right hand U-tube?

c) Add more solute to the left hand side.

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