Active Transport

• Active transport is the movement of particles from a lower to higher concentration.
• Active transport goes against the concentration gradient and therefore requires energy.
• A cell that needs to perform active transport will have a high number of mitochondria.
• Active transport is used in root hair cells to draw in mineral ions.
• Active transport is used in the small intestine to draw in food molecules such as glucose.
• Active transport can be sped up by having a higher surface area and a higher concentration gradient.