9. Glucose is not readily available in the diets of most heterotrophs. So, how do organisms combat this to still go through glycolysis for energy? Organisms, like humans, will obtain most of their daily calories from food in the
forms of carbohydrates, fats, and proteins. The catabolism of these molecules will allow for their monomers to
enter glycolysis and the citric acid cycle. What happens in the absence of food? Starvation leads to significant
weight loss. In fact, people can lose up to 10 pounds per week with no food consumption. This dramatic and life
threatening weight loss stems from the fact that these people are unable to receive the nutrients they need from
food to go through glycolysis and the subsequent steps of cellular respiration. a) Identify the macromolecule being
catabolized to power cellular respiration when a person is starving. b) Identify the monomers of the macromolecule
identified in part (a). Connect your answer from part (a) to justify how this leads to dramatic weight loss in people
who are starving