Life: The Science of Biology
11th Edition
ISBN: 9781319010164
Author: David E. Sadava, David M. Hillis, H. Craig Heller, Sally D. Hacker
Publisher: W. H. Freeman
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Chapter 50.3, Problem 6R
Summary Introduction
To review:
The role of the autocatalytic nature of pepsin in regulating positive feedback of protein hydrolysis in the stomach.
Introduction:
The stomach is involved in storing large amounts of the food consumed and passing it to the small intestine slowly so that digestion remain slower than ingestion. The walls of the stomach have three types of cells out of that the mucous secreting cells and parietal cells secret HCl (hydrochloric acid), whereas the chief cells secrete pepsinogen.
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