Celiac disease affects the small intestine. The immune system attacks the gluten protein found in wheat, rye and barely, and also damages the lining of the small intestine. What is the primary function of the small intestine?

When people with celiac disease eat gluten (a protein found in wheat, rye and barley), their body mounts an immune response that attacks the small intestine. These attacks lead to damage on the villi, small fingerlike projections that line the small intestine, that promote nutrient absorption.

Protein

Explanation: Molecule Dumont is a protein molecule, with Groucho being a DNA molecule, Chico being the ribosome, and Harpo being the Golgi apparatus.

Groucho (DNA) contains the information needed for the protein to be produced, and sends this information to Chico(ribosome) with a messenger molecule(mRNA). At Chico, the information is processed and the Dumont is synthesized with various of its subunits, called amino acids. Once done, Dumont moves over to Harpo (Golgi apparatus), where it is basically 'packaged', meaning it is modified for either staying in the cell, being sent to fuse with the membrane, or covered in it's own membrane and sent out of the cell.