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

Which structure allows only certain things to pass in and out of the cell?a.cytoplasmb.cell membranec.nuclear envelop

What structure controls the passage of substances into and out of a cell?

Cells have structures that hold them to one another or to the basement membrane. Which of the following is not a function of those structures?Multiple ChoiceMechanically bind the cells togetherHelp form a permeability barrierProvide a mechanism for intercellular communicationMove substances across the apical surface of cells

Which of the following help direct the movement of materials or organelles throughout the cell?Group of answer choicescytoskeletonrough endoplasmic reticulumsmooth endoplasmic reticulumcytoskeleton, and smooth and rough endoplasmic reticulumsmooth and rough endoplasmic reticulum

The cell membrane is ______ permeable.Multiple choice question.freelynot veryselectivelynon-