Bio: Cell Transport Practice Test

Front

What is the function of proteins in the plasma membrane?

Back

Proteins in the plasma membrane provide passage for large molecules and ions into or out of the cell.

Front

What is diffusion?

Back

Diffusion is a passive transport process where molecules move from an area of higher concentration to an area of lower concentration.

Front

What type of transport moves particles from low concentration to high concentration?

Back

Active transport requires energy to move particles from low concentration to high concentration.

Front

What happens to a plant cell in an isotonic environment?

Back

A plant cell in an isotonic environment maintains its shape and does not gain or lose water.

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 osmosis?

Back

Osmosis is the passive transport of water molecules across a selectively permeable membrane.

Front

What is active transport?

Back

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

Front

What is equilibrium in the context of cell transport?

Back

Equilibrium is the state where the concentration of molecules is equal on both sides of a membrane.

Front

What occurs when a red blood cell is placed in a hypertonic solution?

Back

The red blood cell will lose water and shrink.