Osmosis & Diffusion Flashcard 1

Front

What does selectively-permeable mean?

Back

The cell controls what passes in and out of the cell.

Front

Which of the following statements is true about osmosis?

Back

It involves the movement of water through a semipermeable membrane.

Front

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

Back

water

Front

What is diffusion?

Back

The movement of molecules from an area of higher concentration to an area of lower concentration.

Front

What is the main 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.

Front

What is a semipermeable membrane?

Back

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

Front

What does isotonic mean?

Back

A solution with the same concentration of solutes as another solution.

Front

What is active transport?

Back

The movement of molecules against their concentration gradient, requiring energy.

Front

What is the end result of diffusion?

Back

Equilibrium, where molecules are evenly distributed.

Front

What is an example of diffusion in everyday life?

Back

The smell of perfume spreading in a room.