The main difference between a prokaryotic cell and a eukaryotic cell is
a.) the ability to grow
b.) the ability to reproduce
c.) the presence of nucleic acids
d.) the presence of a true nucleus

The main difference between a prokaryotic cell and a eukaryotic cell is the presence of a true nucleus. The correct option in regards to the given question is option "D". Prokaryotic cells do not have a proper nucleus while the eukaryotic cells have a proper nucleus. Both the prokaryotic and the eukaryotic cells have DNA. Chloroplasts are only found in eukaryotic or plant cells. They are not found in prokaryotic cells. Cell membranes are present in both prokaryotic and eukaryotic cells.