In Diffusion, substances move from a high to low concentration.

In Diffusion, substances move from low to high concentration.

In Active Transport, dissolved molecules move across a cell membrane from a low to high concentration.

In Active Transport, dissolved molecules move across a cell membrane from a high to low concentration.

Osmosis is th diffusion of water molecules from a dilute solution to a concentration solution across a semi-permeable membrane.

Osmosis is th diffusion of water molecules from a concentrated solution to a dilute solution across a semi-permeable membrane.

Active transport does need energy to work.

Active transport does not need energy to work.

Diffusion does need energy to work.

Diffusion does need energy to work.

Osmosis is similar to diffusion but only explains the movement of water molecules.

Active Transport is similar to diffusion but only explains the movement of water molecules.

Within the body, Glucose is actively transported from the small intestine into the blood across villi.

Within the body, Urea is actively transported from the small intestine into the blood across villi.

In plants, Glucose are actively transported from the soil through root hair cells.

In plants, Mineral Ions are actively transported from the soil through root hair cells.

An increased concentration gradient causes a higher rate of diffusion.

An increased concentration gradient does not effect the rate of diffusion.

An higher temperature causes a higher rate of diffusion.

An lower temperature causes a higher rate of diffusion.