Cells Review

Front

What is concentration?

Back

The amount of particles in a given space.

Front

What happens to water molecules during osmosis?

Back

Water molecules move out of the cell, causing the cell to shrink.

Front

What is osmosis?

Back

The process when water diffuses across a membrane.

Front

What is the Cell Theory?

Back

A theory that states all living things are made of cells, and cells are the basic unit of life.

Front

Who discovered and named cells?

Back

Robert Hooke discovered and named cells while looking at cork.

Front

What is diffusion?

Back

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

Front

What is active transport?

Back

The movement of particles against a concentration gradient, requiring energy.

Front

What is a permeable membrane?

Back

A membrane that allows certain substances to pass through.

Front

Who is Anton van Leeuwenhoek?

Back

A scientist known for his work in microscopy and for discovering single-celled organisms.

Front

What did Theodor Schwann contribute to cell theory?

Back

He proposed that all animals are made of cells.