veins take blood back to the heart. which gas would be most abundant in a vein that takes blood from muscle…

veins take blood back to the heart. which gas would be most abundant in a vein that takes blood from muscle cells in the arm back to the heart?\ncarbon dioxide\noxygen\nnitrogen\nhydrogen

veins take blood back to the heart. which gas would be most abundant in a vein that takes blood from muscle cells in the arm back to the heart?\ncarbon dioxide\noxygen\nnitrogen\nhydrogen

Answer

Brief Explanations:

Muscle cells perform cellular respiration, consuming oxygen and producing carbon - dioxide. Blood in veins returning from muscle cells is deoxygenated and rich in carbon - dioxide. Oxygen is used up in cellular respiration in muscle cells. Nitrogen is present in the blood in small, relatively constant amounts and is not related to muscle cell metabolism. Hydrogen is not a major gas in this context.

Answer:

carbon dioxide