Ch. 5 The Working Cell

Front

What regulates what enters and leaves a cell?

Back

Cell Membrane

Front

What happens to water when a blood cell is placed in an isotonic solution?

Back

Water moves equally in and out of the cell.

Front

Define osmosis.

Back

Movement of water through a selectively-permeable membrane from high to low water concentration.

Front

What type of cell transport is endocytosis?

Back

A process where cells engulf substances from the outside environment.

Front

What is selectively permeable in a cell?

Back

Cell membrane.

Front

What is the primary function of the cell membrane?

Back

To regulate the movement of substances in and out of the cell.

Front

What is passive transport?

Back

Movement of substances across a cell membrane without the use of energy.

Front

What is the difference between osmosis and diffusion?

Back

Osmosis is the movement of water, while diffusion is the movement of solutes.

Front

What is the role of the nucleus in a cell?

Back

To store genetic information and control cell activities.

Front

What is exocytosis?

Back

The process by which a cell expels materials in vesicles.