PATHOLOGY

Detailed explanation-1: -A ribosome is an intercellular structure made of both RNA and protein, and it is the site of protein synthesis in the cell. The ribosome reads the messenger RNA (mRNA) sequence and translates that genetic code into a specified string of amino acids, which grow into long chains that fold to form proteins.

Detailed explanation-2: -The endoplasmic reticulum can either be smooth or rough, and in general its function is to produce proteins for the rest of the cell to function. The rough endoplasmic reticulum has on it ribosomes, which are small, round organelles whose function it is to make those proteins.

Detailed explanation-3: -Ribosomes are found in plant and animal cells and are made up of protein and ribosomal RNA. They can be either free or attached. Ribosomes are located in the cytoplasm, on the surface of the endoplasmic reticulum, the mitochondria, and the chloroplasts. The job of ribosomes is to synthesize (or build) protein.

Detailed explanation-4: -Explanation : Nucleolus is a darkly pigmented portion of nucleus . It produces rRNA which moves from there to cytoplasm and join with proteins to form ribosomes. So it concludes that nucleolus is the portion of cell which forms ribosomes.

Detailed explanation-5: -Final answer: Ribosomes are usually located in animal and plant cells on the endoplasmic reticulum.