Which part of the cell is semipermeable, or controls what enters and leaves the cell? mitochondrioncytoplasmendoplasmic reticulumcell membrane

The cell membrane is semipermeable, meaning it allows some substances to pass while controlling what enters and leaves the cell. The mitochondrion produces much of the cell’s energy, the cytoplasm fills the cell, and the endoplasmic reticulum helps make and transport materials, so the correct choice is the cell membrane.

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