Final answer:
Lipids, which include fats and oils, are not a quick source of energy as they require a longer metabolic process for conversion into usable energy compared to carbohydrates.
Step-by-step explanation:
Are lipids a source for quick energy? The answer is B) No. Lipids, such as fats and oils, are not considered a quick energy source compared to carbohydrates like glucose. While lipids do contain more energy per gram, yielding about 9 kcal of energy for every gram oxidized versus the 4 kcal/g provided by carbohydrates, they go through a more complex and slower process called lipolysis and ß-oxidation to be used for energy. This process involves breaking down triglycerides into fatty acids and glycerol, which then enter different metabolic pathways such as the Krebs cycle and glycolysis, respectively.
In contrast, the human body readily uses carbohydrates, particularly glucose, for immediate energy needs because carbohydrates can be rapidly metabolized. Thus, while lipids serve as an important energy reserve and have a higher energy output, they do not provide quick energy when compared to carbohydrates.