8 Questions
What is the primary source of energy for the contraction of cardiac myocytes?
Mitochondria
Which pigment in cardiac myocytes is responsible for storing and transferring oxygen?
Myoglobin
In which type of metabolism does aerobic respiration occur?
When oxygen is present
Which process is employed by all tissues for the breakdown of glucose to provide energy?
Glycolysis
What is the end product of glycolysis in cells with mitochondria and an adequate supply of oxygen?
Pyruvate
Which specific material can pass across the cell membrane via protein channels?
Glucose
What is required to reoxidize the NADH formed during glycolysis?
Oxygen
Which metabolic pathway is at the hub of carbohydrate metabolism?
Glycolysis
Test your knowledge on the energy needs and metabolism of the myocardium, including the role of mitochondria, myoglobin, and coronary arteries in meeting these requirements.
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