Multiple Choice
Which of the following is NOT considered a macromolecule found in living organisms?
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4. Biomolecules
Introduction to Biomolecules
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Which of the following best describes the role of micronutrients in the body?
A
They are the building blocks of nucleic acids and proteins.
B
They are required in small amounts and are essential for enzyme function and metabolic processes.
C
They provide the primary source of energy for cellular activities.
D
They serve as the main structural components of cell membranes.
Verified step by step guidance1
Understand the term 'micronutrients': Micronutrients are vitamins and minerals that the body requires in small amounts to function properly. They are not macronutrients like carbohydrates, proteins, or fats, which are needed in larger quantities.
Eliminate incorrect options: Micronutrients are not the building blocks of nucleic acids and proteins, as these are primarily composed of macronutrients like amino acids and nucleotides.
Consider energy sources: Micronutrients do not provide the primary source of energy for cellular activities. Energy is primarily derived from macronutrients such as carbohydrates and fats.
Evaluate structural roles: Micronutrients are not the main structural components of cell membranes. Cell membranes are primarily composed of lipids (phospholipids) and proteins.
Focus on enzyme function and metabolism: Micronutrients are essential for enzyme function and metabolic processes. Many vitamins and minerals act as cofactors or coenzymes, enabling enzymes to catalyze biochemical reactions efficiently.
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