Chapter 13, Problem 25P

Summary Introduction

To calculate:

The free energy required to transport $\text{1 mol}$ of hydrogen ions through the pumps that transport hydrogen ions from the cytosol ( $\text{pH 7}\text{.0}$) into the stomach, contributing to the acidity of gastric juice.

Introduction:

The stomach has gastric glands that are made up of different types of cells. The parietal cells are one of those cells that cause the release of intrinsic factors among $\text{HCl}$(hydrochloric acid) to the lumen of the stomach. The pH of the small intestine is about $6.0$.