NEET Biology Body Fluids And Circulation Based Practice Questions & Answers with Viewers Discussion and Detailed Explanation

Answer: (b)

Maximum amount of oxygen is lost from the blood in the capillaries surrounding the tissue cells. Capillaries are the smallest blood vessels that make up the microcirculation. Their endothelial linings are only one cell layer thick. These microvessels connect arterioles and venules, and help to enable the exchange of water, oxygen, carbon dioxide, and many other nutrients and waste substances between the blood and the tissues surrounding them.