NYS Diffusion Lab

Front

What is osmosis?

Back

The diffusion of water molecules through a semi-permeable membrane from an area of high concentration to an area of low concentration.

Front

Where will starch be found after 24 hours in a diffusion experiment?

Back

Inside the cell, only.

Front

What is the building block of complex carbohydrates (starches)?

Back

Glucose.

Front

What color change occurs when iodine/starch indicator solution comes in contact with starch?

Back

Amber to blue-black.

Front

What is the initial color of starch indicator solution?

Back

Amber.

Front

Define diffusion.

Back

The process by which particles spread from an area of high concentration to an area of low concentration.

Front

What is a semi-permeable membrane?

Back

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

Front

Explain 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 molecules.

Front

What role does glucose play in living organisms?

Back

Glucose serves as a primary energy source and is a building block for complex carbohydrates.

Front

What is the significance of the color change in the iodine/starch test?

Back

The color change indicates the presence of starch in the solution.