10 Questions
What is the primary energy source for cardiac muscle?
Fatty acids
What is the purpose of the Cori cycle in the muscle?
To restore muscle glycogen concentrations
What is the primary difference between slow-twitch and fast-twitch muscle fibers?
Slow-twitch fibers have more mitochondria and use oxidative phosphorylation, while fast-twitch fibers have fewer mitochondria and use glycolysis.
How does endurance training affect the muscle?
It increases the number of mitochondria in the muscle.
What is the purpose of the 'O2 debt' that occurs after vigorous exercise?
To replenish ATP stores in the muscle via oxidative phosphorylation.
What is the main difference between cardiac muscle and skeletal muscle in terms of metabolism?
Cardiac muscle has more mitochondria and is primarily fueled by fatty acids, while skeletal muscle has fewer mitochondria and is primarily fueled by glucose.
What is the purpose of the Cori cycle in the context of muscle metabolism?
To convert lactate produced during anaerobic glycolysis in the muscle back into glucose in the liver.
How does the metabolic profile of slow-twitch and fast-twitch muscle fibers differ?
Slow-twitch fibers have a higher density of mitochondria and rely more on oxidative phosphorylation, while fast-twitch fibers have a lower density of mitochondria and rely more on anaerobic glycolysis.
What is the primary function of the Cori cycle in the context of muscle metabolism?
To convert lactate produced during anaerobic glycolysis in the muscle back into glucose in the liver.
How does endurance training affect the metabolic profile of muscle tissue?
Endurance training increases the number of mitochondria in the muscle, enhancing the capacity for oxidative phosphorylation.
Explore the two types of adipose tissue functions, white adipose tissue (WAT) and brown adipose tissue (BAT), along with their specific roles in fuel storage and thermogenesis. Learn about glucose metabolism in adipose tissue involving glycolysis, oxidation of pyruvate, and the citric acid cycle.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
