Multiple Choice
What is the primary function of the enzyme amylase in digestion?
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6. Enzymes and Enzyme Kinetics
Enzymes
Multiple Choice
In biochemistry, what type of biological molecule is an enzyme most commonly?
A
Lipid (a hydrophobic molecule used for energy storage and membranes)
B
Protein (a polypeptide that catalyzes a reaction)
C
Nucleic acid (a DNA or RNA molecule whose primary role is genetic information storage)
D
Carbohydrate (a polysaccharide that provides structural support)
Verified step by step guidance1
Understand the role of enzymes in biochemistry: enzymes are biological catalysts that speed up chemical reactions without being consumed in the process.
Recall the four major classes of biological macromolecules: lipids, proteins, nucleic acids, and carbohydrates, each with distinct structures and functions.
Analyze the characteristics of each macromolecule type: lipids are hydrophobic molecules mainly for energy storage and membrane structure; nucleic acids store genetic information; carbohydrates provide energy and structural support.
Recognize that enzymes are primarily proteins, which are polypeptides made of amino acids, and their specific three-dimensional structures enable them to catalyze biochemical reactions.
Conclude that among the options, enzymes are most commonly proteins, as this class of molecules is responsible for catalytic activity in biological systems.
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