Question

multiple choice 1 point
which illustration is showing active transport of a solute?
extracellular fluid
cytoplasm
a
b
c

Explanation:

Active transport moves solutes against their concentration gradient (from low to high concentration) and requires energy. In option C, the solute is moving from an area of low concentration (cytoplasm) to an area of high concentration (extracellular fluid), which is characteristic of active transport. Option A shows simple diffusion (down the concentration gradient without a protein), and option B shows facilitated diffusion (down the concentration gradient with a protein, but no energy input for moving against the gradient).

Answer:

C.