Multiple Choice
Which of the following actions should you avoid before preparing food to ensure proper hygiene in the digestive system?
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23. The Digestive System
Introduction to the Digestive System
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Which of the following statements about digestion is true?
A
Saliva contains enzymes that digest fats.
B
The large intestine is responsible for the digestion of carbohydrates.
C
Digestion begins in the stomach with the breakdown of proteins.
D
The small intestine is the primary site for nutrient absorption.
Verified step by step guidance1
Understand the role of saliva in digestion: Saliva contains enzymes like amylase that begin the digestion of carbohydrates, not fats.
Examine the function of the large intestine: The large intestine is primarily involved in water absorption and the formation of feces, not the digestion of carbohydrates.
Consider where digestion begins: Digestion actually begins in the mouth with the mechanical breakdown of food and enzymatic action on carbohydrates, not in the stomach.
Identify the primary site for nutrient absorption: The small intestine is indeed the primary site for nutrient absorption, where most of the digestion and absorption of nutrients occurs.
Review the digestive process: The small intestine has structures like villi and microvilli that increase surface area for absorption, making it the main site for absorbing nutrients into the bloodstream.
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