An organelle is a membrane-bound structure found inside a cell. Cells have membranes to hold everything in. Similarly, these mini-organs i.e. organelle is also confined in a double layer of phospholipids to insulate their little compartments within the larger cells. Cell organelles are present in the cytoplasm, a viscous liquid found within the cell membrane. It houses the cell organelles and is the place where most of the action has happened in a cell.