1. Spirometer measures: A. Capacity of lungs B. Volume of air inhaled and exhaled C. Residual air D. All of these   A   B   C   D   Hint Half-n-half Clue   2. True or False: Trachea contains 16-20 'C'-shaped cartilaginous rings.   True   False   3. What is the leaf-like structure which prevents the entry of food into respiratory passages?   Epiglottis   Pharynx   Tongue   Larynx   Half-n-half Clue   4. Which part of the respiratory tract is also known as the voice box?   Larynx   Trachea   Pharynx   Epiglottis   Half-n-half Clue   5. True or False: Exhalation and inhalation of air is known as "cellular respiration".   True   False   6. Which cells of the blood carry oxygen to different parts of the body?   False   B   Red blood cells   True   Half-n-half Clue   7. Complete the equation: Glucose + Oxygen = _______ + Water + CO2   None of these   Energy   Starch   Sucrose   Half-n-half Clue