Membrane Transport

Front

What are transport proteins?

Back

Proteins that facilitate the movement of substances across a cell membrane.

Front

What is a hypertonic solution?

Back

A solution that has a higher concentration of solutes compared to another solution, causing cells to lose water.

Front

What is pinocytosis?

Back

A form of endocytosis where a cell takes in liquid from the surrounding environment.

Front

What happens to a cell in a hypotonic solution?

Back

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

Front

What are phospholipids?

Back

Molecules that make up the cell membrane, consisting of a hydrophilic head and two hydrophobic tails.

Front

What is the function of marker proteins?

Back

Proteins that identify cells and help in cell recognition.

Front

What is the role of receptor proteins?

Back

Proteins that receive signals from outside the cell and initiate a response.

Front

What is osmosis?

Back

The movement of water across a selectively permeable membrane from an area of low solute concentration to an area of high solute concentration.

Front

What is the difference between active and passive transport?

Back

Active transport requires energy to move substances against their concentration gradient, while passive transport does not.

Front

What is an isotonic solution?

Back

A solution with the same concentration of solutes as another solution, resulting in no net movement of water.