Diffusion/Osmosis

Front

What is diffusion?

Back

Diffusion is the process by which molecules move from an area of high concentration to an area of low concentration.

Front

What is osmosis?

Back

Osmosis is the movement of water molecules through a selectively permeable membrane from an area of low solute concentration to an area of high solute concentration.

Front

Where is there a high concentration of water in a plant?

Back

In the vase, where the water is stored.

Front

What is required for active transport?

Back

Energy is required for active transport to move molecules against their concentration gradient.

Front

What is the difference between passive and active transport?

Back

Passive transport does not require energy and moves molecules down their concentration gradient, while active transport requires energy to move molecules against their concentration gradient.

Front

What is a concentration gradient?

Back

A concentration gradient is the difference in the concentration of a substance between two areas.

Front

What happens to a cell in a hypertonic solution?

Back

In a hypertonic solution, water moves out of the cell, causing it to shrink.

Front

What happens to a cell in a hypotonic solution?

Back

In a hypotonic solution, water moves into the cell, causing it to swell and potentially burst.

Front

What is facilitated diffusion?

Back

Facilitated diffusion is the process by which molecules pass through a cell membrane via special proteins, moving from high to low concentration without energy.

Front

What type of molecules typically require active transport?

Back

Large molecules or ions that cannot easily pass through the cell membrane typically require active transport.