The principle organ in humans involved in the absorption of nutrients like glucose ,fructose, fatty acids , glycerol and amino acids is

Options

A. Stomach
B. Small intestine
C. Mouth
D. large intestine

Answer

To solve the question regarding the principal organ in humans involved in the absorption of nutrients like glucose, fructose, fatty acids, glycerol, and amino acids, we can follow these steps:

### Step 1: Identify the Nutrients
The question specifies several nutrients: glucose, fructose, fatty acids, glycerol, and amino acids. We need to determine where in the human body these nutrients are primarily absorbed.

**Hint:** Think about the digestive system and where most nutrient absorption occurs.

### Step 2: Analyze Each Option
1. **Stomach**: The stomach primarily functions in the digestion of food and does not significantly absorb nutrients. It mainly absorbs some non-polar substances like alcohol and aspirin.

**Hint:** Consider the main functions of the stomach and what it absorbs.

2. **Small Intestine**: The small intestine is known for its role in the absorption of nutrients. It has specialized structures like villi and microvilli that increase the surface area for absorption, making it the principal organ for nutrient absorption.

**Hint:** Recall the structure and function of the small intestine and its role in digestion.

3. **Mouth**: The mouth is involved in the initial stages of digestion, mainly through mechanical breakdown and saliva. It does not play a significant role in nutrient absorption.

**Hint:** Think about what happens in the mouth during digestion.

4. **Large Intestine**: The large intestine primarily absorbs water and some remaining nutrients, but it is not the main site for the absorption of the nutrients listed in the question.

**Hint:** Consider what the large intestine's primary functions are.

### Step 3: Determine the Correct Answer
After analyzing all the options, it is clear that the **small intestine** is the principal organ involved in the absorption of the specified nutrients.

**Final Answer:** The correct answer is **small intestine**.

### Summary of Steps:
1. Identify the nutrients mentioned in the question.
2. Analyze each option based on its role in nutrient absorption.
3. Conclude that the small intestine is the principal organ for nutrient absorption.