A. The model shows the process of active transport because the solute particles are moving from an area of four concentration to an area of high concentration. B. The model shows the process of bulk transport because the solute particles are moving from an area of low concentration to an area of high concentration. C. The model shows the process of osmosis because the solute particles are moving from an of high concentration to an area of low concentration. D. The model shows the process of diffusion because solute particles are moving from an area of high concentration to an area of low concentration.

## Step 1: Identify the Process Described by the Model<br />### The image depicts solute particles moving from an area of low concentration to an area of high concentration across a cell membrane. This movement is facilitated by a protein channel or pump and requires energy input, as indicated by the "Energy" label and arrow pointing towards the protein channel.<br /><br />## Step 2: Determine the Correct Biological Process<br />### Active transport is the process where substances move against their concentration gradient (from low to high concentration) with the help of energy, typically in the form of ATP. The presence of energy input and movement against the concentration gradient in the model aligns with the characteristics of active transport.<br /><br />## Step 3: Evaluate the Options<br />### - Option A describes active transport correctly, as it involves solute particles moving from an area of low concentration to an area of high concentration with energy input.<br />### - Option B incorrectly associates bulk transport with this process; bulk transport involves the movement of large quantities of materials into or out of the cell, not necessarily against a concentration gradient.<br />### - Option C describes osmosis, which involves the movement of water, not solutes, across a semipermeable membrane from high to low concentration.<br />### - Option D describes diffusion, which involves solutes moving from high to low concentration without energy input.