Diffusion and Osmosis Flashcard

Front

True or False: Osmosis is a type of diffusion involving water moving across a membrane.

Back

True

Front

The process by which particles move from an area of high concentration to an area of low concentration is called _____________.

Back

Diffusion

Front

What is the general term for the movement of water across a semipermeable membrane?

Back

Osmosis

Front

During osmosis, water moves from ____________ concentration to ____________ concentration.

Back

high; low

Front

Which of the following is an example of osmosis?

Back

Raisins placed in water swell up.

Front

What is diffusion?

Back

The movement of particles from an area of high concentration to an area of low concentration.

Front

What type of transport requires energy to move substances across a membrane?

Back

Active transport.

Front

What is an isotonic solution?

Back

A solution where the concentration of solutes is the same inside and outside the cell.

Front

What happens to a cell in a hypertonic solution?

Back

The cell shrinks as water moves out.

Front

What happens to a cell in a hypotonic solution?

Back

The cell swells as water moves in.