Multiple Choice
Which of the following statements is correct about the functions of proteins in the body?
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2. Cell Chemistry & Cell Components
Proteins
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In the digestive system, which enzyme is mixed with proteins to break them into amino acids?
A
Lactase
B
Pepsin
C
Lipase
D
Amylase
Verified step by step guidance1
Identify the function of each enzyme listed: Lactase breaks down lactose, Lipase breaks down fats, Amylase breaks down carbohydrates, and Pepsin breaks down proteins.
Understand that proteins need to be broken down into smaller units called amino acids for absorption.
Recognize that Pepsin is the enzyme responsible for breaking down proteins into peptides and amino acids in the stomach.
Recall that Pepsin is activated in the acidic environment of the stomach, where it begins the digestion of proteins.
Conclude that Pepsin is the correct enzyme that mixes with proteins to break them into amino acids.
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