For active transport to occur a substance:
A) Must combine with a carrier protein to create electrochemical energy
B) Must be filtered through the proximal convoluted tubule
C) Must be in higher concentration in the filtrate than in the blood
D) Must be in higher concentration in the blood than in the filtrate

Question

Quizplus · Accepted Answer

Active transport requires a substance to combine with a carrier protein to move against its concentration gradient, using energy.

For Active Transport to Occur a Substance