Carbohydrates, fats & proteins are essential for_______________?
Correct answer: D. All of these
- A. Metabolic processes of an organism
- B. Providing energy
- C. Formation of sturctures
- D. All of these
Explanation
Carbohydrates and fats supply energy, proteins provide amino acids for growth and repair, and all three classes contribute to metabolic processes and body structures. Therefore all listed functions are included. Students may choose providing energy because it is the most familiar function, but it does not include the structural and metabolic roles.
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About Classification of Biological Molecules
Biological molecules are classified as carbohydrates, lipids, proteins and nucleic acids, with water, minerals and vitamins also supporting cellular processes. The key distinctions involve their monomers, chemical bonds, structures and functions, including glucose and starch, fatty acids and triglycerides, amino acids and polypeptides, and nucleotides in DNA and RNA.
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