Question

1. in which organ does most nutrient absorption occur? stomach large intestine small intestine esophagus

Explanation:

To determine the organ of most nutrient absorption:

• Stomach: Primarily for digestion (e.g., protein breakdown), not main absorption.
• Large intestine: Absorbs water, electrolytes, some vitamins, not most nutrients.
• Small intestine: Has villi/microvilli increasing surface area, enzymes, and transporters for absorbing carbohydrates, proteins, fats, vitamins, minerals.
• Esophagus: Transports food, no absorption.

So the small intestine is where most nutrient absorption occurs.

Answer:

C. Small intestine