Final answer:
People with celiac disease have an immune response to gluten, which damages microvilli and leads to malnutrition, cramping, and diarrhea. There are no specific forms of MHC class II receptors found in celiac disease.
Step-by-step explanation:
People with celiac disease have an immune response to gluten, which is a protein found in wheat, barley, and rye. The immune response damages microvilli, preventing absorption of nutrients and leading to malnutrition, cramping, and diarrhea. In individuals with celiac disease, there are no specific forms of MHC class II receptors that are found. MHC class II receptors are responsible for presenting antigens to CD4+ T cells in the immune response. However, the damage to the microvilli in celiac disease affects the absorption of nutrients and does not directly involve the MHC class II receptors.