One way that all the energy-yielding nutrients are alike is that _____

Question

Quizplus · Accepted Answer

All energy-yielding nutrients (carbohydrates, fats, and proteins) ultimately enter the TCA cycle, also known as the citric acid cycle or Krebs cycle, to generate ATP, the main energy currency of the body. While the pathways leading up to the TCA cycle differ for each nutrient, the TCA cycle is a common endpoint for all of them. Thus, D is the best choice. The other options are incorrect: A is incorrect because the pathways for energy production are not entirely different, as many of the intermediate products from one pathway can be converted into another pathway. B is incorrect because not all nutrients go through the Cori cycle, which is a pathway that occurs during anaerobic metabolism in the liver and skeletal muscle. C is incorrect because the number of hydrogen bonds has no direct relationship to energy production. E is incorrect because the number of carbon-hydrogen bonds varies for each nutrient and is not a defining characteristic of energy-yielding nutrients.

One Way That All the Energy-Yielding Nutrients Are Alike Is