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1.) We direct the genetic information of the cell. We are made of DNA, and found in the nucleus, usually in pairs.

2.) I am a thin protective layer around the cell, but I am not one solid piece. I have tiny openings that allow materials to pass in and out of the cell.

3.) I am the brain of the cell, and I control all the activities of the cell. I am located in the cytosol, but you would not find me in prokaryotic cells.

4.) When a cell needs energy, I take in nutrients, break them down, and supply energy to the cell. I can also convert stored energy in the cell to food.