Cell Transport: Passive vs. Active

Front

What is the state called when both the inside and outside of a cell have the same amount of water?

Back

Equilibrium

Front

What process occurs when WATER diffuses across a membrane?

Back

Osmosis

Front

Which way do water molecules move during osmosis if the cell shrinks?

Back

Out of the cell, so the cell shrinks.

Front

What type of transport requires energy (ATP) to move molecules from low to high concentration?

Back

Active Transport

Front

What is diffusion?

Back

The movement of molecules from an area of high concentration to an area of low concentration.

Front

What is facilitated diffusion?

Back

A process that helps molecules cross the cell membrane with the help of transport proteins, without using energy.

Front

What is osmosis?

Back

The diffusion of water across a selectively permeable membrane.

Front

What is a concentration gradient?

Back

A difference in the concentration of a substance across a space.

Front

What happens to a cell in a hypertonic solution?

Back

The cell shrinks as water moves out of it.

Front

What happens to a cell in a hypotonic solution?

Back

The cell swells as water moves into it.