What is the metabolic significance of the following observation? Liver tissue bu
ID: 70703 • Letter: W
Question
What is the metabolic significance of the following observation? Liver tissue but not muscle tissue contains an appreciable level of glucose-6-phosphatase.
A. Glucose-6-phosphatase plays an important role in liver and not muscle because a key liver function is to manufacture glucose for export. B. Glucose-6-phosphatase inhibits production of citric acid cycle intermediates in all cells so the liver removes excess amounts from the blood. C. Glucose-6-phosphatase controls the level of ATP production only in tissues that can carry out gluconeogenesis. D. Glucose-6-phosphatase is produced in liver cells and then small amounts of glucose-6-phosphatase are delivered to muscle cells.Explanation / Answer
A. Glucose-6-phosphatase plays an important role in liver and not muscle because a key liver function is to manufacture glucose for export.