Question

Ribosomes are the sites of
(a)Lipid synthesis
(b)Storage of food products
(c)Nutrient synthesis
(d)Protein synthesis.

Answer 1

Hint: Ribosomes are macromolecular machines that help in the synthesis of our body building macromolecules. In Eukaryotes the Ribosome is found to be the 80S, while in Prokaryotes it is found to have 80S. Here S is the Svedberg unit.

Complete answer:
Ribosomes are the site for protein synthesis. The surface of the rough endoplasmic reticulum is studded with protein-manufacturing ribosomes. Within the ribosome, the rRNA molecules direct the catalytic steps of protein synthesis and the stitching together of amino acids to make a protein molecule. rRNA is sometimes called a ribozyme or catalytic RNA to reflect this function.
Lipid synthesis takes place in Endoplasmic reticulum.

Additional Information: A ribosome may be a large complex of RNA and protein. Ribosomes are found altogether living cells, prokaryotes also as eukaryotes. A ribosome may be a mixture of protein and RNA that starts its formation within the nucleolus of a cell.
During translation, ribosomal subunits assemble a sort of a sandwich on the strand of mRNA, where they proceed to draw in tRNA molecules tethered to amino acids (circles). an extended chain of amino acids emerges because the ribosome decodes the mRNA sequence into a polypeptide or a replacement protein.
-The mRNA molecules exported from the nucleus are translated into protein within the cytoplasm by the ribosomes (which are RNA-protein complexes, not organelles).
-Ribosomes have two main functions — decoding the message and the formation of peptide bonds. These two activities reside in two large ribonucleoprotein particles (RNPs) of unequal size, the ribosomal subunits. Each subunit is made of one or more ribosomal RNAs (rRNAs) and many ribosomal proteins (r-proteins).
-Structure: A ribosome is formed out of RNA and proteins, and every ribosome consists of two separate RNA-protein complexes, referred to as the tiny and enormous subunits.

So, the correct answer is, “Protein synthesis”.

Note: The ribosome is the main organelle which helps in the protein synthesis. Proteins are the body building macromolecules which provides about 4 kcal energy to our body.
Area of protein synthesis is ribosome and ribosomal protein(rRNA) is the protein which helps in the process of translation.
It is found in both prokaryotes and eukaryotes.