ZOOLOGY ONLINE TEST 18

The process by which oxygen moves from alveoli into blood is —

The end products of aerobic respiration are —

The enzyme involved in cellular respiration is —

The volume of air breathed in and out during normal breathing is —

Which gas is transported mostly in dissolved form in blood?

The muscle mainly responsible for inspiration is —

The percentage of oxygen in atmospheric air is approximately —

The respiratory pigment present in human blood is —

The site of gaseous exchange in human lungs is —

The process of taking in oxygen and releasing carbon dioxide is called —