B1.9 Active transport

Question 1

What is active transport?

Answer 1

Is the movement of dissolved molecules into or out of a cell through the cell membrane, from a region of lower concentration to a region of higher concentration. The particles move against the concentration gradient, using energy released during respiration.

Question 2

How is active transport useful in the root hair cells?

Answer 2

Plants can absorb these mineral ions - even though it against a concentration gradient