Question

when building the model cell, what did you put into it?
glucose and starch
iodine and water
glucose and iodine

Explanation:

When building a model cell, glucose (a simple sugar that can represent substances like nutrients that can pass through a selectively permeable membrane in some models) and starch (a complex carbohydrate that is often used in cell - membrane - related experiments as it is a larger molecule that may not pass through a semi - permeable membrane easily, similar to how some macromolecules are restricted in a real cell). Iodine is usually used as an external solution (like in a diffusion experiment where it can test for the presence of starch if it can pass through the membrane). Water is also often an external component. But in terms of what is put "into" the model cell (assuming a dialysis - tube - like model cell), glucose (small molecule that can be inside to represent intracellular solutes) and starch (larger molecule inside to show size - based membrane restrictions) are common.

Answer:

glucose and starch