Question

1. use your own words to explain what a concentration gradient is and how it is eliminated.

Explanation:

A concentration gradient is the difference in the amount (concentration) of a substance (like a solute, gas, or ion) between two regions. For example, if there's more sugar in one part of a water - filled container than another, a sugar concentration gradient exists. It gets eliminated through diffusion, where the substance moves from the region of higher concentration to the region of lower concentration. This movement continues until the concentration of the substance is the same throughout the space (reaching equilibrium), thus removing the gradient. For instance, if you open a bottle of perfume in a corner of a room, the perfume molecules (higher concentration near the bottle) will diffuse through the air to areas with lower concentration until the scent is evenly spread, and the concentration gradient of perfume molecules is gone.

Answer:

A concentration gradient is the difference in the concentration of a substance between two regions. It is eliminated by diffusion, where the substance moves from the region of higher concentration to the region of lower concentration until the concentration is uniform (equilibrium is reached) throughout the space.