Cell Membrane Review

Front

What is the process called when proteins act like pumps to move molecules through the cell membrane?

Back

Active transport

Front

What happens to a cell when it is placed in a hypotonic solution?

Back

The cell gets bigger than normal.

Front

What type of solution has a higher concentration of solutes outside the cell, causing water to move out?

Back

Hypertonic solution

Front

What is the term for the movement of molecules across a membrane through protein channels without the use of energy?

Back

Facilitated diffusion

Front

What type of transport do diffusion and facilitated diffusion both represent?

Back

Passive transport

Front

What is the main difference between active transport and passive transport?

Back

Active transport requires energy, while passive transport does not.

Front

What is the role of channel proteins in facilitated diffusion?

Back

They create a passageway for specific molecules to cross the membrane.

Front

What is osmosis?

Back

The diffusion of water across a selectively permeable membrane.

Front

What occurs during the process of diffusion?

Back

Molecules move from an area of higher concentration to an area of lower concentration.

Front

What is a selectively permeable membrane?

Back

A membrane that allows certain molecules to pass while blocking others.