Question

choose the correct answer.
what is the function of the plasma membrane in a prokaryotic cell?
it controls what goes in and out of the cell.
it breaks down food.
it holds the dna.
it creates energy.

Explanation:

The plasma membrane is a selectively permeable barrier. It regulates the entry and exit of substances (like ions, nutrients, and waste) into and out of the cell, similar to a gatekeeper. Breaking down food is typically a function of enzymes (e.g., in digestion processes in some cells), holding DNA is related to the nucleoid region (in prokaryotes) or nucleus (in eukaryotes), and creating energy is often associated with structures like mitochondria (in eukaryotes) or through metabolic pathways in the cytoplasm (in prokaryotes).

Answer:

It controls what goes in and out of the cell.