Here's a breakdown of the components:

* Ribosomal RNA (rRNA): This is the structural and catalytic core of the ribosome. It provides the framework for the ribosome and participates in the chemical reactions of protein synthesis.

* Ribosomal proteins: These proteins associate with rRNA to form the two subunits of the ribosome:

* Small subunit (40S in eukaryotes, 30S in prokaryotes): This subunit binds to mRNA and initiates protein synthesis.

* Large subunit (60S in eukaryotes, 50S in prokaryotes): This subunit contains the peptidyl transferase center, where peptide bonds are formed between amino acids.

Here's how the ribosome works in protein synthesis:

1. mRNA binding: The small ribosomal subunit binds to the mRNA molecule.

2. tRNA binding: tRNAs, carrying their respective amino acids, bind to the mRNA according to its genetic code.

3. Peptide bond formation: The large subunit joins the amino acids together, forming a polypeptide chain.

4. Elongation: The ribosome moves along the mRNA, reading the codons and adding more amino acids to the growing polypeptide chain.

5. Termination: The ribosome reaches a stop codon on the mRNA, signaling the end of translation. The polypeptide chain is released, and the ribosome dissociates.

Therefore, the ribosome is the central player in the protein synthesis process, acting as a molecular machine that translates the genetic code into functional proteins.