The on Ly Es Se Ntia L G I Se

Question

The on ly es se ntia l G I se cr etio n is
A) Mucus
B) Gastrin
C) Vitamin B12
D) Intrinsic factor
E) Pepsinogen

Accepted Answer

Intrinsic factor is essential for the absorption of vitamin B12 in the small intestine, which is crucial for the production of red blood cells. Without intrinsic factor, a person can develop pernicious anemia, making it an essential gastrointestinal secretion.