Which of the following is not the function of large intestine?

Options

A. Absorption of some water, minerals and certain drugs
B. Nutrient absorption
C. Secretion of mucus to lubricate faeces
D. Temporary storage of faeces in rectum

Answer

To determine which of the following is not a function of the large intestine, we need to understand the primary functions of the large intestine compared to those of the small intestine.

### Step-by-Step Solution:

1. **Identify the Functions of the Large Intestine**:
- The large intestine is primarily responsible for absorbing water and electrolytes from the remaining indigestible food matter.
- It also plays a role in the formation and storage of feces.
- Additionally, the large intestine secretes mucus to help lubricate the feces for easier passage.

2. **Identify the Functions of the Small Intestine**:
- The small intestine is where most nutrient absorption occurs. It has three parts: the duodenum, jejunum, and ileum.
- The duodenum is involved in the initial digestion and absorption of nutrients, while the jejunum and ileum are primarily responsible for the absorption of nutrients.

3. **Analyze the Given Options**:
- We need to look at the options provided to identify which function does not belong to the large intestine.
- Functions typically associated with the large intestine include water absorption, mucus secretion, and temporary storage of feces.

4. **Determine the Incorrect Function**:
- The function that is not associated with the large intestine is nutrient absorption. This is primarily the role of the small intestine.

5. **Conclusion**:
- Therefore, the answer to the question "Which of the following is not the function of the large intestine?" is **Nutrient Absorption**.