Answer: no
Explanation: The solute can move "downhill," from regions of higher to lower concentration, relying on the specificity of the protein carrier to pass through the membrane. This process is called passive transport or facilitated diffusion, and does not require energy.
Cell
Tissue
Organ
Organ System
Organism
Answer: B
Explanation: The amount of salt in the inner circle is equal to the amount of salt in the outer circle.
