Fill in the Blank QuestionFill in the blank question.Parietal cells also produce factor, a molecule that binds vitamin in the stomach lumen.

Parietal cells also produce intrinsic factor, a molecule that binds vitamin B12 in the stomach lumen.

Intrinsic factor is essential for the absorption of vitamin B12 in the intestines. Vitamin B12, also known as cobalamin, is crucial for various bodily functions, including the development of red blood cells, DNA synthesis, and the proper functioning of the nervous system. Without intrinsic factor, vitamin B12 cannot be effectively absorbed, leading to potential deficiencies. This can, in turn, result in serious health issues, including megaloblastic anemia and neurological disorders. Hence, parietal cells play a vital role in both stomach physiology and overall health by aiding in the absorption of this important nutrient.