Asked by Andrea Rodriguez on May 08, 2024
Verified
Intrinsic factor
A) increases gastric motility.
B) causes the release of stomach acid.
C) facilitates the absorption of vitamin B12.
D) protects the stomach lining from the effects of stomach acid.
E) stimulates the synthesis of DNA.
Intrinsic Factor
A glycoprotein secreted by the stomach's parietal cells necessary for the absorption of vitamin B12 in the small intestine.
Vitamin B12
An essential nutrient important for maintaining nerve cells and aiding in the production of DNA and red blood cells.
Gastric Motility
The process of muscular contractions that mix and propel contents through the stomach.
- Gain insight into the phases involved in the secretion of gastric juices and the formation of chyme.
Verified Answer
NR
Nicole RobinsonMay 12, 2024
Final Answer :
C
Explanation :
Intrinsic factor is a glycoprotein produced by the parietal cells of the stomach. It is essential for the absorption of vitamin B12 in the small intestine. Vitamin B12 is crucial for the synthesis of DNA, among other functions, but the direct role of intrinsic factor is to bind to vitamin B12 and facilitate its absorption, not to stimulate DNA synthesis itself.
Learning Objectives
- Gain insight into the phases involved in the secretion of gastric juices and the formation of chyme.