Metabolism 2

Fat is the primary fuel for low-intensity exercise.

• True

• False

The shift from fat to CHO metabolism as exercise intensity increases are due to _____.

• recruitment of fast-twitch muscle fibers

• recruitment of slow-twitch muscle fibers

• increasing blood levels of insulin

• increasing blood level of noradrenaline

During prolonged, low-intensity exercise, the fuel selection shift from _______ metabolism toward ______ metabolism.

• fat, carbohydrate

• carbohydrate, fat

• fat, protein

• carbohydrate, protein

What is the primary source of carbohydrates during low-intensity exercise?

• Muscle glycogen.

• Blood glucose.

• Liver glycogen.

• Muscle triglicerides

Lactate can be converted to glucose in the liver by _______.

• kreb cycle

• electron transport chain

• cori cycle

• glycolysis