1. Starch contains approximately 70% amylopectin and 30% amylose. Use your understanding of food chemistry to discuss why eating a meal containing starch several hours prior to going on a run could benefit a runner. In your answer, refer to:
• the glycaemic indexes of amylopectin and amylose
• cellular respiration.rest 0.1 mL. (3 marks)
Solution
2.Tien notices that she breathes easily when running in a park away from traffic. However, when running in a particularly high-traffic area, Tien experiences shortness of breath. In this high-traffic area, the concentration of carbon monoxide, CO, is between 50 and 100 ppm, but the levels of other air pollutants are negligible.
After moving away from the high-traffic area, Tien’s breathing becomes easier. Use Le Chatelier’s principle to discuss the changes in Tien’s breathing in the park and in the particularly high-traffic area. In your answer, refer to competing equilibria involving CO. You may use equations in your answer. (5 marks)
