Multiple Choice
Most of the alcohol that a person consumes is absorbed by the body through the:
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1. Introduction to Biology
Introduction to Biology
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In the average person, what percentage of alcohol is absorbed through the small intestine?
A
About 95%
B
About 50%
C
About 80%
D
About 20%
Verified step by step guidance1
Understand the process of alcohol absorption in the human body: Alcohol is absorbed into the bloodstream primarily through the stomach and small intestine. The majority of absorption occurs in the small intestine due to its large surface area and rich blood supply.
Recall that the stomach absorbs a smaller percentage of alcohol compared to the small intestine. The stomach's absorption is limited because it has a smaller surface area and slower absorption rate.
Recognize that the small intestine is responsible for absorbing the majority of alcohol consumed. This is because it has specialized structures like villi and microvilli that increase surface area, facilitating efficient absorption.
Review the approximate percentages of alcohol absorption: Studies show that about 20% of alcohol is absorbed in the stomach, while the remaining 80% is absorbed in the small intestine.
Conclude that the correct answer is 'About 80%' for the percentage of alcohol absorbed through the small intestine, based on the physiological processes of the digestive system.
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