NYS Lab #2: Diffusion Through a Membrane

Front

What is diffusion?

Back

Diffusion is the process by which particles move from an area of high concentration to an area of low concentration.

Front

What is osmosis?

Back

Osmosis is the diffusion of water across a selectively permeable membrane.

Front

What does isotonic mean?

Back

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

Front

What is a selectively permeable membrane?

Back

A selectively permeable membrane allows certain molecules to pass through while blocking others.

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.

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.

Front

What is the role of salt in the diffusion process?

Back

Salt can create a lower concentration of water around cells, leading to water diffusing out of the cells.

Front

What is the end result of diffusion?

Back

The end result of diffusion is an equal distribution of particles throughout a space.

Front

What is active transport?

Back

Active transport is the movement of molecules across a membrane against their concentration gradient, requiring energy.

Front

What is the difference between diffusion and osmosis?

Back

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