Final answer:
A prokaryote is a simple, single-celled organism that lacks a nucleus or any other membrane-bound organelle. They have prokaryotic DNA in the nucleoid and a cell wall outside the plasma membrane.
Step-by-step explanation:
A prokaryote is a simple, single-celled (unicellular) organism that lacks a nucleus, or any other membrane-bound organelle. Prokaryotic DNA is found in a central part of the cell called the nucleoid. Prokaryotes generally have a cell wall outside the plasma membrane.