Cell Transport

Front

What happens to an animal cell placed in a hypertonic solution?

Back

The cell will shrink due to water loss.

Front

What is active transport?

Back

Active transport is the process by which cells move molecules from an area of low concentration to an area of high concentration, requiring energy.

Front

What type of diffusion occurs when molecules move from high to low concentration without energy?

Back

Passive diffusion.

Front

Why is passive transport called 'passive'?

Back

Because it occurs without the use of energy.

Front

What is osmosis?

Back

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

Front

What is a hypertonic solution?

Back

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

Front

What is a hypotonic solution?

Back

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

Front

What is isotonic solution?

Back

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

Front

What is facilitated diffusion?

Back

Facilitated diffusion is the process of passive transport of molecules across a cell membrane via specific transmembrane integral proteins.

Front

What role do transport proteins play in cell transport?

Back

Transport proteins help move substances across the cell membrane, either passively or actively.