4.4: Active Transport

Question 1

What is the definition of active transport

Answer 1

The movement of molecules or ions into or out of a cell from a region of lower concentration to a region of higher concentration using ATP and carrier proteins

Question 2

How is ATP used during Active Transport

Answer 2

1. Used to directly move molecules
2. Used to individually move molecules using a concentration gradient that has already been setup by direct active transport. For example, co-transport