Which body system is primarily responsible for nutrient absorption?

Which body system is primarily responsible for nutrient absorption?

• A. The respiratory system
• B. The muscular system
• C. The digestive system
• D. The circulatory system

Answer: (C)

The digestive system is primarily responsible for nutrient absorption because it specializes in breaking down food into smaller components that can be easily absorbed by the body. This system includes various organs such as the stomach, intestines, and pancreas that work together to digest food. When food is ingested, it undergoes mechanical and chemical processes that convert it into absorbable units, such as amino acids from proteins and simple sugars from carbohydrates. These nutrients are then absorbed mainly in the small intestine, where the walls are lined with villi and microvilli that increase the surface area for maximum absorption. Once absorbed, these nutrients enter the bloodstream and are transported to cells throughout the body to provide energy, facilitate growth, and support overall bodily functions. Thus, the primary role of the digestive system in nutrient absorption is crucial for maintaining health and sustaining life.

The digestive system is primarily responsible for nutrient absorption because it specializes in breaking down food into smaller components that can be easily absorbed by the body. This system includes various organs such as the stomach, intestines, and pancreas that work together to digest food.

When food is ingested, it undergoes mechanical and chemical processes that convert it into absorbable units, such as amino acids from proteins and simple sugars from carbohydrates. These nutrients are then absorbed mainly in the small intestine, where the walls are lined with villi and microvilli that increase the surface area for maximum absorption.

Once absorbed, these nutrients enter the bloodstream and are transported to cells throughout the body to provide energy, facilitate growth, and support overall bodily functions. Thus, the primary role of the digestive system in nutrient absorption is crucial for maintaining health and sustaining life.