The enzyme that speeds the combination of carbon dioxide and water inside red blood cells is
Correct answer: A. carbonic anhydrase
- A. carbonic anhydrase
- B. catalase
- C. amylase
- D. decarboxylase
Explanation
Carbonic anhydrase makes carbonic acid form rapidly, which then dissociates to bicarbonate and H+, the main vehicle for CO2 transport. Without the enzyme the reaction would be too slow for the transit time through a capillary.
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About Human Respiratory System
The human respiratory system conducts air to the alveoli, where oxygen and carbon dioxide exchange occurs across thin respiratory surfaces. Questions cover the nasal passage, trachea, bronchi, lungs, diaphragm and intercostal muscles, ventilation mechanics and gas transport, while distinguishing breathing and gaseous exchange from cellular respiration.
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