Question

what is the function of the cell membrane? a to give shape to the cell b to increase the number of cells c to control what enters and leaves the cell d to produce macromolecules within the cell

Explanation:

The cell - membrane is a selectively permeable barrier. It regulates the movement of substances such as ions, nutrients, and waste products in and out of the cell. It does not give shape to the cell (the cytoskeleton helps with shape), does not increase the number of cells (cell - division does that), and does not produce macromolecules (cellular organelles like ribosomes, endoplasmic reticulum etc. are involved in macromolecule production).

Answer:

C. to control what enters and leaves the cell