Question

Which among the following controls the movement of substances in and out of the cell?

• A. Cytoplasm
• B. Cell membrane
• C. Mitochondrion
• D. Nucleus

Answer 1

The correct option is B Cell membrane

$\bullet$ Cell membrane is the outermost layer of the animal cell. It controls the movement of substances in and out of cells. It is a selectively permeable membrane.
$\bullet$ Cytoplasm is the jelly-like fluid substance that fills the cell.
$\bullet$ Mitochondrion is the double membrane-bound organelle. It generates energy in the form of ATP.
$\bullet$ Nucleus is the membrane-bound organelle present in the eukaryotic cell which stores the hereditary material and controls the overall activity of the cell.