What are same between prokaryotes and eukaryotes?

Answer 1

1) Cell walls - Most Prokaryotes and some eukaryotes (plants and fungi) have a cell wall.However, the cell walls of prokaryotes and eukaryotes, although similar in function, are made of different types of materials.
2) Cytoplasm - Both prokaryotes and eukaryotes have a fluid-like matrix that fills the cell.
3) Cytoskeleton - Both prokaryotes and eukaryotes have a supportive cytoskeleton within the cell, although this feature was only recently discovered to occur within prokaryotes.
4) Extensions of the Plasma Membrane - Both prokaryotic and eukaryotic cells can have thin extensions of the plasma membrane supported by elements of the cytoskeleton, including flagella and cilia in eukaryotes and flagella, endoflagella, fimbriae and pili in prokaryotes.
5) Glycocalyces - There are some prokaryotes and eukaryotes that possess a glycocalyx. These sticky sugar-based structures anchor cells to each other help cells stick to surfaces and provide some protection.
6) Plasma membranes - Both prokaryotes and eukaryotes have this lipid bilayer surrounding that represents the boundary between the inside and outside of the cell.

7) Ribosomes - These little protein factories are the cell's only non-membrane-bound organelle. Both prokayrotes and eukaryotes manufacture proteins, therefore both cell types possess ribosomes.