Question

Which of the following nutrients do not provide energy for animals?

• A. Fats
• B. Carbohydrates
• C. Vitamins
• D. Proteins

Answer 1

Answer: (C)

Fats are converted into energy when they are completely oxidized to CO₂ and water by β-oxidation and the citric acid cycle. Carbohydrates are completely oxidized to CO₂ and water during aerobic respiration and lead to the generation of ATP. Proteins get converted into intermediates of the respiratory cycle and finally get converted to high yielding energy molecules.
Vitamins do not directly play an important role in energy production however, they support the metabolism indirectly.

So, the correct answer is 'Vitamins'