Ribosomes can be found floating freely in the cell or attached to the Endoplasmic Reticulum.

 What is the function of the ribosome?

Ribosomes "read" the genetic instructions in the cell and build various proteins needed by the cell.  Proteins are molecules that perform all sorts of functions inside your body.

Which part of the school do the ribosomes represent?

Think about our school.  Who is responsible for learning material and producing work?