Explain the function of ribosomes and why cells need them?

The ribosomes are tiny organelles in the cell. They are made of RNA with some additional protein. Their function is to oversee the polymerisation (joining together) of amino acid molecules to form protein molecules. Ribosomes are made in the nucleus, but do their work in the cytoplasm of the cell.

Ribosomes are important because proteins are important in living things, without ribosomes there would be no proteins and life would not exist.