Which one of the following is not true about active transport?
ARequires energy
BRequires membrane proteins
CDownhill transport
DHighly selective
Answer:
C. Downhill transport
Read Explanation:
Active Transport is defined as a process that involves the movement of molecules from a region of lower concentration to a region of higher concentration against a gradient or an obstacle with the use of external energy.
Active transport requires a specialized carrier molecule, a protein, and the expenditure of cellular energy; transfer across membranes can therefore occur against a concentration gradient.
