Multiple Choice
Enzymes are important for allowing and speeding up which of the following processes in an organism?
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6. Enzymes and Enzyme Kinetics
Enzymes
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Which of the following enzymes is primarily involved in the digestion of carbohydrates?
A
Trypsin
B
Pepsin
C
Lipase
D
Salivary amylase
Verified step by step guidance1
Understand the role of enzymes in digestion: Enzymes are biological catalysts that speed up the breakdown of macromolecules into smaller, absorbable units. Different enzymes target specific types of macromolecules, such as carbohydrates, proteins, or lipids.
Identify the macromolecule in question: The problem focuses on the digestion of carbohydrates, which are broken down into simpler sugars like glucose for absorption.
Match the enzyme to its substrate: Salivary amylase is the enzyme responsible for breaking down carbohydrates. It hydrolyzes starch (a polysaccharide) into maltose (a disaccharide) and smaller oligosaccharides. This process begins in the mouth during chewing.
Eliminate incorrect options: Trypsin and pepsin are proteases that digest proteins, while lipase is involved in lipid digestion. None of these enzymes are involved in carbohydrate digestion.
Conclude the correct enzyme: Salivary amylase is the enzyme primarily involved in carbohydrate digestion, initiating the process in the oral cavity.
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