Multiple Choice
Where is the enzyme alcohol dehydrogenase primarily found in the human body?
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7. Energy and Metabolism
Enzymes
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Where is the enzyme sucrase primarily found in the human body?
A
In the pancreas
B
In the salivary glands
C
In the brush border of the small intestine
D
In the stomach lining
Verified step by step guidance1
Understand the role of sucrase: Sucrase is an enzyme responsible for breaking down sucrose (table sugar) into glucose and fructose, which are absorbable monosaccharides.
Learn about the brush border: The brush border is a specialized structure in the small intestine composed of microvilli, which increase surface area for nutrient absorption and host enzymes like sucrase.
Recognize the location of sucrase: Sucrase is embedded in the brush border of the small intestine, where it facilitates the digestion of sucrose as food passes through the digestive tract.
Eliminate incorrect options: The pancreas produces digestive enzymes but not sucrase. The salivary glands secrete amylase for starch digestion, and the stomach lining produces enzymes like pepsin for protein digestion, not sucrase.
Conclude that the correct answer is the brush border of the small intestine, as this is the primary site where sucrase is found and functions effectively.
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