One primary function of the cell membrane is *(1) regulating (controlling) the flow of simple sugars (food) into or out of the cell(2) synthesizing (making) substances by breaking down cell organelles(3) storing carbohydrates, water, and starches for future use(4) digesting (breaking down) carbohydrates, fats, and protein
Since the cell membrane has a very important role in nutrient uptake from the environment, option (1) is the the correct option. Therefore cell membrane is very important in regulating (controlling) the flow of simple sugars into or out of the cell.
