Final answer:
In eukaryotic cells, internal membranes partition the cell into specialized regions of cytoplasm and cellular organelles. Though technically incorrect, the option that most closely relates to this division is cytoplasm and cell membrane, aligning with Option 2 from the question.
Step-by-step explanation:
Eukaryotic cells maintain internal membranes that partition the cell into specialized regions. Internal membranes divide each cell functionally into the cytoplasm and various cellular organelles. The cytoplasm is the jelly-like substance residing between the cell membrane and the nuclear membrane, containing intracellular fluids and components like mitochondria and ribosomes, while cellular organelles are specialized structures within the cytoplasm that perform distinct functions necessary for the cell's survival.
This includes the nucleus, which houses DNA and regulates genes and protein production. In the context of the question, junctions technically do not divide cells into functional regions, but tissues can be divided into functional regions facilitated by cell junctions. Therefore, none of the options provided accurately reflect how junctions function, but Option 2, cytoplasm and cell membrane, most closely relates to the division of internal cell space if we consider the overall organization of cell structure.