In the stomach, parietal cells are responsible for the formation of the gastric juice. During acid secretion, the pH in the stomach is estimated to be pH= 2, whereas parietal cells maintain an intracellular pH = 7.35. The transmembrane potential of parietal cells is typically -70 mV. Body temperature 37°C. 1) Calculate the proton gradient concentration across the parietal membrane 2) Calculate the free energy change associated with the secretion of 1 mole of H*

In the stomach, parietal cells are responsible for the formation of the gastric juice. During acid secretion, the pH in the stomach is estimated to be pH= 2, whereas parietal cells maintain an intracellular pH = 7.35. The transmembrane potential of parietal cells is typically -70 mV. Body temperature 37°C. 1) Calculate the proton gradient concentration across the parietal membrane 2) Calculate the free energy change associated with the secretion of 1 mole of H*

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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