Bio: Cell Transport

Osmosis is defined as

• the movement of large particles across a membrane from high to low.

• the movement of water across a membrane from low to high.

• how cells use energy.

• the movement of water across a membrane from high to low.

What would happen to a cell if placed in a hypertonic solution?

• The shape of the cell would remain the same.

• The cell would shrivel up.

• The cell would swell up.

What would happen to a cell that is placed in a hypotonic solution?

• Little or no change

• The cell would shrivel up.

• The cell will swell up.

Why does a cell swell up when placed in a hypotonic solution?

• There is more solute inside the cell than there is outside of the cell.

• There is less solute inside the cell than there is outside of the cell.

• There is more solute outside the cell than there is inside the cell.

Mr. Hinkle places a cell in an unknown solution he weighs the mass of the cell which is 33 grams. A few days later he removes the cell from the solution and weighs the mass of the cell which ends up weighing 37 grams. What can you conclude about the type of solution that the cell was placed in?

• The solution was isotonic

• The solution was hypertonic.

• The solution was hypotonic.

In an isotonic situation molecules are

• moving out at a higher rate than they are moving in.

• moving in and out at equal rates.

• moving in at a higher rate than they are moving out.

• only moving out.

The cell membrane's function is

• to regulate the materials that exit the cell during active transport only.

• to provide support for the cell.

• to regulate the materials that enter and exit the cell.

• to help the cell move around.

Tags

NGSS.MS-LS1-2

The image on the left is before equilibrium is reached and the image on the right is after equilibrium has been reached. What is the best explanation for what occurred?

• There is more water on side one of the u-tube, causing the water to move to side one.

• There is more solute on side two of the u-tube, causing the water to move to side one.

• There is less water on side one of the u-tube causing the water to move to side two.

• There is more solute on side one of the u-tube, causing the water to move to side one of the u-tube.

The image is of solute particles in water. The membrane is permeable to water only. Predict which, if any, way the water will move.

• The water will move to the left because there is less solute on the left side.

• The water will move to the right because there is more water on the right side.

• The water will move to the left because there is more solute on the left side.

• The water will move to the right because there is more solute on the right side.

Which image below correctly represents diffusion?

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