Three light sticks are activated at the same time. One stick is placed in a beaker of hot water, one in a beaker of ice water, a
nd one remains at room temperature. Which is the likely result? A) The hot stick is brightest, and the cold stick is dimmest. B) The sticks in water are brighter than the one in the room air. C) The hot stick is dimmest, and the cold stick is brightest.
Answer: Option B) the high partial pressure of carbon dioxide in the tissues.
Explanation:
The high concentration of oxygen in the alveoli of the lungs unloads H+ and carbon dioxide (CO2) from the hemoglobin, just as the high concentration of H+ and CO2 in active tissues unloads Oxygen from hemoglobin molecules.
Adding hydrogen atoms to an unsaturated fatty
acid will make it more solid. This process is called hydrogenation. In this
process, hydrogen is added to an unsaturated fatty acid to make it more
saturated and thereby more solid at a room temperature.
