Digestive Homeostasis Worksheet
An 11th-grade science worksheet focusing on the mechanisms and regulation of digestive homeostasis in the human body.
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Digestive Homeostasis
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Read each question carefully and provide concise, accurate answers based on your understanding of digestive homeostasis. Refer to the diagram of the human digestive system as needed.
The Human Digestive System
1. Which of the following best describes the primary role of digestive homeostasis?
To regulate blood sugar levels only.
To maintain a stable internal environment within the digestive tract.
To absorb nutrients into the bloodstream.
To break down food mechanically.
2. Which hormone is primarily responsible for stimulating the release of bile from the gallbladder?
Gastrin
Secretin
Cholecystokinin (CCK)
Insulin
3. The pH of the stomach is maintained at a highly acidic level primarily by the secretion of .
4. Pancreatic enzymes are activated in the , where the pH is typically alkaline.
5. Explain how negative feedback loops contribute to maintaining digestive homeostasis, providing one specific example.
6. Describe the role of the liver in digestive homeostasis, beyond just bile production.
7. The enteric nervous system can operate independently of the central nervous system to regulate digestive processes.
True
False
8. Gastric emptying rate is solely determined by the volume of food ingested.
True
False