Understanding Solutions: Hypertonic, Isotonic, and Hypotonic

The video explains the types of solutions: hypertonic, isotonic, and hypotonic. It describes how solutions are made of solvents and solutes, using coffee as an example. The video details how hypertonic solutions cause cells to shrink, hypotonic solutions cause cells to swell, and isotonic solutions maintain cell size. It emphasizes the movement of water across cell membranes based on solute concentration differences.

What is the role of a solvent in a solution?

• It is the solid part of the solution.

• It is the substance that dissolves the solute.

• It is the gas part of the solution.

• It is the substance being dissolved.

In a cup of coffee, which component acts as the solute?

• Water

• Coffee grounds

• Cup

• Steam

What happens to the concentration of the solvent as the solute increases?

• It decreases.

• It becomes zero.

• It increases.

• It remains the same.

In a hypertonic solution, what happens to a cell?

• It bursts.

• It remains unchanged.

• It shrinks.

• It swells.

Why does water flow out of a cell in a hypertonic solution?

• Because there is a higher concentration of water outside the cell.

• Because there is a higher concentration of water inside the cell.

• Because the solute concentration is lower outside.

• Because the cell membrane is impermeable.

What is a characteristic of a hypotonic solution?

• It has no solute.

• It has the same solute concentration as the cell.

• It has a lower solute concentration than the cell.

• It has a higher solute concentration than the cell.

In a hypotonic solution, what happens to a cell?

• It shrinks.

• It remains the same.

• It swells.

• It dissolves.

What is the state of a cell in an isotonic solution?

• It shrinks.

• It swells.

• It remains unchanged.

• It bursts.

Why does a cell remain unchanged in an isotonic solution?

• Because there is a higher concentration of solute inside the cell.

• Because the cell membrane is impermeable.

• Because the solute concentration is higher outside.

• Because there is an equal concentration of water inside and outside the cell.

Which type of solution has an equal concentration of solute inside and outside the cell?

• Isotonic

• Supersaturated

• Hypotonic

• Hypertonic