Cell Transport

Front

What is osmosis?

Back

Osmosis is the movement of water molecules through a selectively permeable membrane from an area of lower solute concentration to an area of higher solute concentration.

Front

Define hypotonic solution.

Back

A hypotonic solution has a lower concentration of solutes compared to the inside of a cell, causing water to enter the cell.

Front

What happens to a cell in a hypotonic solution?

Back

The cell can swell and burst due to the influx of water.

Front

Define hypertonic solution.

Back

A hypertonic solution has a higher concentration of solutes compared to the inside of a cell, causing water to exit the cell.

Front

What happens to a cell in a hypertonic solution?

Back

The cell can shrink and shrivel up due to the loss of water.

Front

What is isotonic solution?

Back

An isotonic solution has the same concentration of solutes as the inside of a cell, resulting in no net movement of water.

Front

What role do ribosomes play in a cell?

Back

Ribosomes produce proteins by translating messenger RNA.

Front

What is the primary function of the cell membrane?

Back

The cell membrane regulates what enters and exits the cell, maintaining homeostasis.

Front

Explain diffusion.

Back

Diffusion is the movement of molecules from an area of higher concentration to an area of lower concentration.

Front

What is active transport?

Back

Active transport is the movement of molecules across a cell membrane against their concentration gradient, requiring energy.