Answer:
The best answer to the question: Ribosomal proteins are the same in all cell types, would be: True.
Step-by-step explanation:
Ribosomes are cell components that are built from proteins and RNA. Their task is to assemble on an mRNA strand and from the code embedded in that strand, code for aminoacids that are carried in the ribosome itself. The one who establishes what type of protein will be produced in the ribosome is the mRNA code, and a series of control processes.
Essentially, both prokaryotic cells and eukariotic cells (like ours) have ribosomes because these elemental organelles in the cell are the ones responsible for assembling proteins, which in the end are the molecules that ensure organisms are able to function. Because their basic function is to code for aminoacids that will build polypeptide chains, and the process for protein formation is basically standardized in both types of cells, the structure of ribosomes does not change depending on the cell where they are found.
In eukaryotes, for example, it has been established that all ribosomes are essentially formed of two subunits, an upper one made of 60 subunits and an bottom one with a smaller chain called a 40-s or 40 subunits. In Prokaryotes the number of subunits on both the top and bottom are a bit smaller than in eukaryotes but for all intents and purposes the differences are very small.