Cell Transport and Osmosis Pulse Check

A red blood cell is placed in a solution with a higher concentration of solutes than inside the cell. What will most likely happen to the cell due to osmosis?

• The cell will swell and burst.

• The cell will shrink.

• The cell will remain the same size.

• The cell will divide.

Which of the following best describes facilitated diffusion?

• Movement of molecules from low to high concentration using energy.

• Movement of molecules from high to low concentration through a protein channel.

• Movement of water across a membrane.

• Movement of large particles by engulfing them.

A plant cell is placed in a hypotonic solution. What is the expected effect on the cell?

• The cell will lose water and shrink.

• The cell will gain water and become turgid (firm and swollen).

• The cell wall will burst and the cell membrane will remain intact.

• The cell will remain unchanged.

Which process requires energy to move substances across the cell membrane?

• Simple diffusion

• Facilitated diffusion

• Active transport

• Osmosis

Which of the following is an example of passive transport?

• Sodium-potassium pump

• Endocytosis

• Simple diffusion of oxygen into a cell

• Exocytosis

What is the main difference between endocytosis and exocytosis?

• Endocytosis moves substances out of the cell, exocytosis moves them in.

• Endocytosis moves substances into the cell, exocytosis moves them out.

• Both move substances into the cell.

• Both move substances out of the cell.

Which scenario best illustrates osmosis?

• Glucose moving through a protein channel.

• Water moving from an area of low solute concentration to high solute concentration across a membrane.

• Oxygen diffusing into a cell.

• Sodium ions being pumped out of a cell.

A cell uses energy to move potassium ions into the cell against their concentration gradient. Which type of transport is this?

• Passive transport

• Simple diffusion

• Active transport

• Facilitated diffusion

A cell is placed in an isotonic solution. Predict what will happen to the movement of water across the cell membrane.

• Water will move only into the cell.

• Water will move only out of the cell.

• Water will move equally in both directions.

• Water will not move at all.

A scientist observes that a cell is taking in large particles by surrounding them with its membrane. Which process is being observed, and what is the likely result for the cell?

• Exocytosis; the cell releases waste.

• Endocytosis; the cell gains nutrients.

• Simple diffusion; the cell loses water.

• Facilitated diffusion; the cell gains ions.