Question

1. some types of syrup are almost entirely made of glucose molecules. if a person ate some syrup like this, what would happen to her ability to exercise? a it would be harder for her to exercise because her digestive system would need to use more enzymes to combine the glucose molecules together. b it would be easier for her to exercise because glucose moves through the circulatory system faster than other food molecules usually do. c nothing would happen to her ability to exercise, but her respiratory system would not work as hard, since glucose has more energy than oxygen molecules. d nothing would happen to her ability to exercise, but her digestive system would not work as hard, since glucose is already small enough to get to her cells.

Explanation:

• Option a: Glucose is a simple sugar. There is no need for the digestive system to combine glucose molecules. So this option is incorrect.
• Option b: While glucose is easily absorbed, the key point is that it doesn't need digestion. The statement about it moving through the circulatory system faster than other food molecules is not the main reason related to digestive effort.
• Option c: Glucose doesn't have more energy than oxygen. Oxygen is used in cellular respiration, but the comparison in terms of energy content here is wrong.
• Option d: Glucose is a monosaccharide (a simple sugar). It is small enough to be absorbed directly into the bloodstream without extensive digestion. So the digestive system doesn't have to work hard to break it down further. This means more energy can be available for exercise as the body doesn't waste energy on complex digestion processes.

Answer:

D. Nothing would happen to her ability to exercise, but her digestive system would not work as hard, since glucose is already small enough to get to her cells.