Which one of the following gives maximum energy in metabolic processes?
Correct answer: B. Fats
- A. Proteins
- B. Fats
- C. Nucleic acids
- D. Carbohydrates
Explanation
Fats provide the most energy in metabolic processes because they yield approximately 9 kcal per gram, which is more than proteins and carbohydrates that provide about 4 kcal per gram. Nucleic acids are not considered a significant energy source. While carbohydrates are important for quick energy supply, fats are the most energy-dense, making them the preferred choice for long-term energy storage.
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About Biological Molecules
The chapter covers water's polarity and biological roles, carbohydrates, lipids, proteins and nucleic acids, including their monomers, bonds, structures and functions. It also distinguishes RNA from DNA and explains conjugated molecules such as glycoproteins, glycolipids and nucleoproteins, which combine organic molecules with a non-protein component.
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