Osmosis Quiz

What is osmosis?

• The movement of solvent molecules from an area of lower solute concentration to an area of higher solute concentration through a semipermeable membrane.

• The movement of solute molecules from an area of higher solute concentration to an area of lower solute concentration through a semipermeable membrane.

• The movement of solvent molecules from an area of higher solute concentration to an area of lower solute concentration through a semipermeable membrane.

• The movement of solvent molecules from an area of lower solute concentration to an area of lower solute concentration through a semipermeable membrane.

Define diffusion.

• The process by which molecules or particles spread out from an area of high concentration to an area of low concentration.

• The process by which molecules or particles combine to form a larger molecule or particle.

• The process by which molecules or particles spread out from an area of low concentration to an area of high concentration.

• The process by which molecules or particles spread out evenly in a given space.

What is selective permeability?

• Property of a membrane to only allow small molecules to pass through.

• Ability of a membrane to allow all substances to pass through freely.

• Property of a membrane to allow certain substances to pass through while restricting the passage of others.

• Property of a membrane to only allow large molecules to pass through.

Explain hypertonic solutions.

• Hypertonic solutions have a lower concentration of solutes compared to the surrounding environment.

• Hypertonic solutions have a higher concentration of solvents compared to the surrounding environment.

• Hypertonic solutions have the same concentration of solutes compared to the surrounding environment.

• Hypertonic solutions have a higher concentration of solutes compared to the surrounding environment.

Describe hypotonic solutions.

• Hypotonic solutions have the same solute concentration as the surrounding medium.

• Hypotonic solutions have a lower solute concentration compared to the surrounding medium.

• Hypotonic solutions have a higher solute concentration compared to the surrounding medium.

• Hypotonic solutions have a higher solvent concentration compared to the surrounding medium.

What are isotonic solutions?

• Solutions that have a higher concentration of solutes than the cells in the body.

• Solutions that have a lower concentration of solutes than the cells in the body.

• Solutions that have no concentration of solutes.

• Solutions that have the same concentration of solutes as the cells in the body.

How does osmosis differ from diffusion?

• Osmosis requires the presence of a concentration gradient, while diffusion does not.

• Osmosis occurs only in living organisms, while diffusion can occur in both living and non-living systems.

• Osmosis is a specific type of diffusion that involves the movement of water molecules across a semipermeable membrane.

• Osmosis involves the movement of solute molecules, while diffusion involves the movement of solvent molecules.

Give an example of osmosis in everyday life.

• Placing a raisin in a cup of water

• Dissolving sugar in a cup of tea.

• Soaking a piece of bread in milk.

• Placing a sponge in a bucket of water.

What happens to a cell in a hypertonic solution?

• The cell will shrink or undergo plasmolysis.

• The cell will expand or undergo cytolysis.

• The cell will remain the same size.

• The cell will divide into two smaller cells.

How does osmosis affect plant cells?

• Osmosis regulates the movement of water across the cell membrane in plant cells.

• Osmosis increases the concentration of solutes in plant cells.

• Osmosis has no effect on plant cells.

• Osmosis causes plant cells to shrink due to the loss of water.