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Multiple Choice
In most biological systems, an enzyme is primarily which type of macromolecule?
A
Lipid
B
Protein
C
Carbohydrate (polysaccharide)
D
Nucleic acid
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Verified step by step guidance
1
Understand the four major types of biological macromolecules: lipids, proteins, carbohydrates (polysaccharides), and nucleic acids.
Recall the primary function of enzymes in biological systems, which is to act as catalysts to speed up chemical reactions.
Recognize that enzymes are typically made up of amino acids linked together in a specific sequence, forming proteins.
Note that lipids mainly serve as energy storage and membrane components, carbohydrates provide energy and structural support, and nucleic acids store genetic information, but none of these primarily function as enzymes.
Conclude that since enzymes are composed of amino acids and function as biological catalysts, they are primarily proteins.