The outer boundary of all cells, known as the ______, acts like a gatekeeper to the cell by regulating what passes through it.Multiple choice question.plasma membranecell wallcapsulecholesterol molecules

All cells have a cell ______ that surrounds the cytoplasm and forms a boundary between the cell and its environment.Multiple choice question.vacuolemembranenucleoidcapsid

The rigid ______ of most bacterial cells surrounds the cell membrane, protecting the cell and giving the cell shape.Multiple choice question.cytoskeletonflagellumpelliclecell wall

The boundary between the interior and exterior of all cells is called the plasma

The cell membrane consists of fatty substances arranged in a double layer called a lipid _____, which separates the intracellular material from the extracellular material.

Which cell structure acts as a selectively permeable barrier, controlling the movement of substances into and out of the cell?Multiple choice question.the rough endoplasmic reticulumthe nuclear envelopethe ribosomethe plasma membrane