The movement of materials across the cell membrane with the help of biological energy provided by ATP is called
A
Active Transport
B
Passive Transport
C
Endocytosis
D
Fractionation
Correct Answer: Active Transport
Primary active transport moves ions across a membrane and creates a difference in charge across that membrane. The primary active transport system uses ATP to move a substance, such as an ion, into the cell, and often at the same time, a second substance is moved out of the cell.