2-4 Egg Osmosis Lab

Front

What is osmosis?

Back

Osmosis is the movement of water molecules across a selectively permeable membrane from an area of lower solute concentration to an area of higher solute concentration.

Front

What is the independent variable in an experiment?

Back

The independent variable is the factor that is changed or controlled in a scientific experiment to test its effects on the dependent variable.

Front

What is a control in an experiment?

Back

A control is a standard against which the results of an experiment are compared, often involving a group that is not exposed to the treatment.

Front

What does isotonic mean?

Back

Isotonic refers to a solution that has the same solute concentration as another solution, resulting in no net movement of water across a membrane.

Front

What is passive transport?

Back

Passive transport is the movement of substances across a cell membrane without the use of energy, typically along the concentration gradient.

Front

What is the difference between osmosis and diffusion?

Back

Osmosis specifically refers to the movement of water, while diffusion refers to the movement of any type of molecules from an area of higher concentration to an area of lower concentration.

Front

What happens to a cell in a hypertonic solution?

Back

In a hypertonic solution, water moves out of the cell, causing it to shrink or crenate due to loss of water.

Front

What happens to a cell in a hypotonic solution?

Back

In a hypotonic solution, water moves into the cell, causing it to swell and potentially burst due to excess water.

Front

What is the role of the cell membrane in osmosis?

Back

The cell membrane is selectively permeable, allowing water to pass through while restricting the movement of solutes.

Front

What is the significance of solute concentration in osmosis?

Back

Solute concentration affects the direction of water movement; water moves towards the area of higher solute concentration.