Which is the best example of active transport?
A)Movement across a membrane due to differences in solute concentration
B)Movement requiring the expenditure of metabolic energy
C)Movement of two molecules simultaneously in one direction
D)Movement of two molecules simultaneously in opposite directions

Question

Quizplus · Accepted Answer

Active transport requires a life, biologic activity, and the expenditure of metabolic energy. Movement due simply to differences in concentration gradients is called passive transport. Movement of two molecules in the same direction is called symport, while moving two molecules in opposite directions is called antiport.

Which Is the Best Example of Active Transport