Four of the Following Characterize Most Prokaryotes

Question

Four of the following characterize most prokaryotes.Which one is the exception?  
A) Lack of a nucleus
B) A single circular chromosome
C) Cell wall
D) Complex internal membranes
E) Great metabolic diversity

Accepted Answer

Prokaryotes lack complex internal membranes. They have simple internal structures including ribosomes, cytoplasm, and sometimes plasmids, but do not have organelles like mitochondria, chloroplasts, or an endoplasmic reticulum.