Which of the Following Is a Typical Feature of an ATP-Driven

Multiple Choice

Which of the following is a typical feature of an ATP-driven active transport mechanism?

A) The transport protein must cross to the correct side of the membrane before the solute can bind to it.
B) The transport protein is irreversibly phosphorylated as transport takes place.
C) The transport protein catalyzes the conversion of ADP to ATP.
D) The solute moves against the concentration gradient.