<span>Epithelial cells in the stomach require the use of coupled transport to make gastric acid. They use hydrogen potassium ATPase, which is an electroneutral pump, and exchanges potassium for hydronium in order to produce the gastric acid.</span>
The correct answer is: Endoplasmic reticulum.
One of the functions of the endoplasmic reticulum is transport of secretory proteins. Synthesized proteins are transported in vesicles to the Golgi apparatus.
Gastric chief cells have a high rate of enzyme secretion such as pepsinogen and gastric lipase. It is the cell also responsible for secretion of chymosin.
The correct answer that would complete the given statement above is cerebral cortex. The outermost layer of the brain, the cerebral cortex, is housed in the cerebrum. The cerebral cortex consists of folded gray matter. It is responsible for the interpretation of input from different sources. <span>The </span>cerebral cortex<span> lobes include the parietal, frontal, occipital and temporal lobes.</span>