allows some things to enter and leave cells, while keeping other things in the cell or keep other things out of the cell.

A:fermentation

B:A selectively permeable membrane

C:metabolism

D:osmosis

The cell membrane is the outer layer of the cell. The primary function of the cell membrane is to regulate what substances enter and leave the cell. The cell membrane is selectively permeable, or "semi-permeable", meaning that the membrane only allows certain substances to enter or leave the cel

i think the answer is g1

hope i

-lavira: )

label a cell membrane

label b cytoplasm

label c ribosomes

label d dna

the membrane forms the outside of the cell

cytoplasm is the liquid within

ribosomes are the components within that distribute rna

the dna is the genetic make-up