Digestive Homeostasis Worksheet
Grade 8 Science worksheet on digestive homeostasis, covering the mechanisms that maintain a stable internal environment in the digestive system.
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Digestive Homeostasis
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Read each question carefully and answer to the best of your ability. Use complete sentences for short answer questions.
1. Which of the following best describes homeostasis in the digestive system?
The process of breaking down food into nutrients.
Maintaining a stable internal environment within the digestive organs.
The absorption of nutrients into the bloodstream.
The elimination of undigested waste.
2. What is the approximate pH level maintained in the stomach for optimal digestion?
7.0 - 8.0
1.5 - 3.5
5.0 - 6.0
9.0 - 10.0
3. The pancreas releases to neutralize the acidic chyme entering the small intestine.
4. The hormone stimulates the production of stomach acid.
5. The liver produces , which helps in the digestion of fats.
6. Explain how the nervous system contributes to maintaining homeostasis in the digestive system.
7. Label the following parts of the digestive system that play a key role in homeostasis:
A.
B.
C.
D.
8. The small intestine is the primary site of water absorption in the digestive system.
True
False
9. Peristalsis is the rhythmic contraction of muscles that moves food through the digestive tract.
True
False
10. Describe a scenario where digestive homeostasis might be disrupted and what the potential consequences could be.