DIFFUSION AND OSMOSIS

Front

What is diffusion?

Back

Diffusion is the process by which molecules move from an area of higher concentration to an area of lower concentration until they are evenly distributed.

Front

What does permeable mean?

Back

Permeable means that things can pass through.

Front

What happens to a cell in a hypotonic solution?

Back

If the volume of a cell increases when it is placed in a solution, that solution is said to be hypotonic to the cell.

Front

What is osmosis?

Back

Osmosis is the movement of water molecules from a high concentration to a low concentration through a semi-permeable membrane.

Front

What is an isotonic solution?

Back

An isotonic solution is one where the concentration of solutes is the same inside and outside the cell, resulting in no net movement of water.

Front

What is active transport?

Back

Active transport is the movement of molecules across a cell membrane from a region of lower concentration to a region of higher concentration, requiring energy.

Front

What is the difference between diffusion and osmosis?

Back

Diffusion refers to the movement of all types of molecules, while osmosis specifically refers to the movement of water.

Front

What occurs when a cell shrinks?

Back

A cell shrinks when it is placed in a hypertonic solution, where the concentration of solutes outside the cell is higher than inside.

Front

What is a hypertonic solution?

Back

A hypertonic solution is one where the concentration of solutes is higher outside the cell than inside, causing water to move out of the cell.

Front

What is a semi-permeable membrane?

Back

A semi-permeable membrane is a barrier that allows certain molecules to pass through while blocking others.