Found only in The kingdom Monera 3. Found in the other Kingdoms 4. Size 0.1 um - 10 um. DNA must be available to produce the enzymes and proteins needed for proper functioning. A too small cell will not have enough DNA to support life and a cell too large will also face the same problem.
Eukaryotic cells contain membrane bound organelles.
These organelles break up the volume of the cell and perform distinct functions cutting down on the raw materials needed. Every part of the cell does not need the same material to perform. It is surrounded by lipid bilayers perforated with pores. Its only when these subunits are properly placed together that the ribosome becomes functional. The proteins made by the free will usually stay within the cell, while the bound are destined to become part of the membrane system or exported from the cell.