Mucus,hydrochloric acid and digestive juices are secreted by the inner lining of :

Options

A. pancreas
B. stomach
C. cellulose
D. sucrose

Answer

To answer the question, "Mucus, hydrochloric acid, and digestive juices are secreted by the inner lining of:", we can follow these steps:

### Step 1: Identify the substances mentioned
The substances we need to focus on are mucus, hydrochloric acid, and digestive juices.

### Step 2: Understand the function of these substances
- **Mucus**: This substance protects the lining of the stomach from the acidic environment and helps in the smooth passage of food.
- **Hydrochloric Acid (HCl)**: This acid creates an acidic environment in the stomach (pH around 1.8) which is essential for activating digestive enzymes and killing harmful bacteria.
- **Digestive Juices**: These include enzymes that help break down food, particularly proteins.

### Step 3: Determine where these substances are secreted
These substances are secreted by the inner lining of the stomach. The stomach has specialized cells that produce:
- Mucus (to protect the stomach lining)
- Hydrochloric acid (to aid in digestion and create an acidic environment)
- Digestive enzymes (to break down food)

### Step 4: Eliminate incorrect options
- **Pancreas**: While it does secrete digestive juices, it does not secrete hydrochloric acid or mucus.
- **Cellulose and Sucrose**: These are types of carbohydrates and are not organs that secrete anything.

### Conclusion
The correct answer is that mucus, hydrochloric acid, and digestive juices are secreted by the inner lining of the **stomach**.

---