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Help answer this question below.
The nucleus does control the cell, and controls the DNA.
However, the CELL MEMBRANE is responsible for what enters and leaves the cell. NOT the nucleus.
used to transport proteins
material between the nucleus and the cell membrane
there isnt one really, things enter and leave the cell through the membrane, which has protein carriers for large or charged particles, water however can diffuse through the cell membrane by osmosis. the golgi apparatus however can package large ammounts of products and send them out of the cell. using "cell drinking" or "cell eating" in the opposit direction, out of the cell.
The cell membrane.
Carmella is right, the cell membrane controls what enters and leaves the cell. Technically, the cell membrane is not an organelle, though.
Control of what passes into and out of the cell is an active, not a passive process, and often depends on the types of proteins embedded in or attached to the lipid bilayer of the membrane. In this respect, it is under the control of the cell's DNA, because the proteins which end up in the cell membrane are built according to instructions in the DNA.
nucleus
the nucleus controls everything in the cell
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