Human Digestive System Review
Flashcard
•
Biology
•
9th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What enzyme is responsible for the digestion of fats in the stomach?
Back
Lipase is the enzyme responsible for the digestion of fats in the stomach.
2.
FLASHCARD QUESTION
Front
What is the main function of the digestive system?
Back
The main function of the digestive system is to break down food to be absorbed.
3.
FLASHCARD QUESTION
Front
What happens to pepsin as it enters the small intestine?
Back
Pepsin becomes inactive as it enters the small intestine due to the higher pH.
4.
FLASHCARD QUESTION
Front
Which digestive organ is responsible for most chemical digestion and absorption of food?
Back
The small intestine is where most chemical digestion and absorption of food takes place.
5.
FLASHCARD QUESTION
Front
What role do enzymes play in digestion?
Back
Enzymes assure that digestion occurs within hours instead of days.
6.
FLASHCARD QUESTION
Front
What is the pH level of the stomach and why is it important?
Back
The stomach has a pH of 2 due to hydrochloric acid (HCl), which is important for activating digestive enzymes like pepsin.
7.
FLASHCARD QUESTION
Front
What is the function of hydrochloric acid in the stomach?
Back
Hydrochloric acid (HCl) helps to digest food and activates the enzyme pepsin.
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