The Biology Project: Biochemistry

Metabolism Problem Set

Problem 15: Metabolism During Heart Attack

During a heart attack, blood flowing to the heart muscle is interrupted by blockage of a coronary artery. How would you expect the metabolism in the heart to change?

A. oxidative phosphorylation would slow down in the mitochondria

B. the rate of production of lactic acid would be stimulated

C. the use of glucose by the muscle tissue would increase

D. the production of water by mitochondria would be inhibited

E. all are expected metabolic changes

Arteries carry oxygenated blood. If the flow of blood through the coronary artery to the heart is blocked, the heart is being deprived of oxygen. All of the above answers are expected effects of an insufficient oxygen supply to the cells, and resulting fermentation.


The Biology Project
University of Arizona
Tuesday, August 20, 1996
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