Question

use the images below to answer the question. the images show a beaker of water and molecules of purple dye at the beginning of an experiment, and the same beaker of water and molecules of purple dye after 30 minute. which of the following best explains what happened? a molecules of water moved by osmosis from a lower concentration to a higher concentration b molecules of dye moved by active transport from a higher concentration to a lower concentration c molecules of water moved by active transport from a higher concentration to a lower concentration d molecules of dye moved by diffusion from a higher concentration to a lower concentration

Explanation:

The images show purple dye spreading from a concentrated area to uniformly mix with water over time. This process is diffusion, where molecules move from higher to lower concentration without energy input. Osmosis involves water across a membrane, and active transport requires energy, which are not applicable here.

Answer:

d. Molecules of dye moved by diffusion from a higher concentration to a lower concentration.