Unit 2 Cellular Processes- Passive Transport

Open Ended

What do you think is meant by a selective membrane in the context of this experiment?

Multiple Choice

What is the process called when water moves across a selectively permeable membrane toward a higher concentration of solute to dilute it?

• Osmosis

• Diffusion

• Active transport

• Facilitated diffusion

Open Ended

Explain how the movement of water across a selectively permeable membrane helps maintain balance in a cell. Use the diagrams to support your answer.

Multiple Select

Which of the following statements about osmosis are correct?

• Water moves toward the side with a higher concentration of solute.

• Osmosis requires energy from the cell.

• Osmosis helps balance concentrations on both sides of a membrane.

• Osmosis only occurs in plant cells.

Fill in the Blank

During osmosis, water moves toward the side with the ___ concentration of dissolved particles.

Fill in the Blank

A solution with the same concentration of dissolved substances as inside the cell is called an ___ solution.

Multiple Choice

In an isotonic solution, what happens to the concentration of dissolved substances inside and outside the cell?

• It remains equal

• It becomes higher inside the cell

• It becomes higher outside the cell

• It fluctuates constantly

Multiple Choice

Which of the following best describes what happens to animal and plant cells in an isotonic solution?

• Both cells maintain their normal shape and pressure.

• Both cells swell and burst.

• Both cells shrink and lose pressure.

• Animal cells burst while plant cells shrink.

Multiple Choice

Which of the following statements about plant cells in a hypotonic solution is correct?

• They shrink due to water loss.

• They swell beyond their normal size as pressure increases.

• They remain unchanged.

• They burst immediately.

Fill in the Blank

A hypertonic solution has a ___ concentration of dissolved substances compared to the inside of the cell.

Multiple Select

Select all correct effects of a hypertonic solution on animal and plant cells.

• Animal cells shrink up like raisins.

• Plant cells lose pressure as the plasma membrane shrinks away from the cell wall.

• Animal cells swell and burst.

• Plant cells swell beyond their normal size.

Multiple Choice

Which type of transport moves particles across the plasma membrane without using energy?

• Passive transport

• Active transport

• Facilitated diffusion

• Osmosis

Fill in the Blank

Active transport requires ___ from the cell to move materials against the concentration gradient.

Multiple Select

Which of the following are examples of passive transport?

• Simple diffusion

• Facilitated diffusion

• Active transport

• Endocytosis