Why would a disorder of the digestive system disrupt homeostasis in the human body?

• A. It enhances the elimination of metabolic wastes, improving internal stability.
• B. It directly increases the production of hormones by the endocrine system.
• C. It increases the rate of cellular respiration, causing excessive energy production.
• D. It impairs nutrient absorption, leading to imbalances in energy and essential molecules needed for cellular functions.

Answer: (D)

Verified step by step guidance

1. Understand the concept of homeostasis: Homeostasis refers to the body's ability to maintain a stable internal environment despite external changes. This includes regulating energy levels, nutrient availability, and waste elimination.
2. Identify the role of the digestive system in homeostasis: The digestive system is responsible for breaking down food into nutrients, which are absorbed into the bloodstream and used by cells for energy and essential functions.
3. Analyze the impact of a digestive system disorder: A disorder in the digestive system can impair nutrient absorption, meaning the body cannot obtain the necessary molecules (e.g., glucose, amino acids, vitamins) required for cellular processes.
4. Connect nutrient absorption to cellular functions: Without proper nutrient absorption, cells may lack the energy and building blocks needed for processes like cellular respiration, protein synthesis, and repair, leading to imbalances in the body.
5. Conclude how this disrupts homeostasis: The inability to absorb nutrients disrupts the balance of energy and essential molecules, impairing the body's ability to maintain stable internal conditions and perform vital functions.