Question

chemicals in a solution can move down a concentration gradient. this means the chemical will move from the area of ________ concentration to the area of _____ concentration.

multiple choice

higher, higher
equal, equal
lower, lower
higher, lower
lower, higher

Explanation:

A concentration gradient refers to the difference in the concentration of a substance between two areas. Chemicals (or molecules) in a solution naturally move down their concentration gradient. This is a fundamental concept in processes like diffusion (in non - living systems) and osmosis (in the context of water movement across semi - permeable membranes in living systems). The direction of movement is from an area where the chemical is more concentrated (higher concentration) to an area where it is less concentrated (lower concentration) until equilibrium (equal concentration throughout the solution) is reached.

Answer:

higher; lower (corresponding to the option "higher, lower")