Which method is an excellent measure of the chemical energy liberated by the heart?
Understand the Problem
The question is asking which method is best for measuring the chemical energy that the heart releases. It presents four options, and the goal is to identify the correct one based on knowledge of cardiovascular physiology.
Answer
The rate of oxygen consumption by the heart.
The rate of oxygen consumption by the heart is an excellent measure of the chemical energy liberated by the heart.
Answer for screen readers
The rate of oxygen consumption by the heart is an excellent measure of the chemical energy liberated by the heart.
More Information
Oxygen consumption correlates with the chemical energy liberated during cardiac contraction because the heart relies heavily on aerobic metabolic processes to sustain its constant activity.
Tips
A common mistake could be confusing oxygen consumption with other forms of measuring energy like calorimetry. Remember, for the heart, oxygen consumption is more direct and specific.
Sources
- Chemical Energy Required for Cardiac Contraction - BrainKart - brainkart.com
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