Which enzyme gets activated by HCl, secreted from gastric glands?

Options

A. Trypsinogen
B. Pepsinogen
C. Renin
D. Chymotrypsin

Answer

**Step-by-Step Solution:**

1. **Understanding the Stomach Structure**: The stomach contains specialized structures known as gastric glands. These glands play a crucial role in digestion.

2. **Identifying the Cells in Gastric Glands**: Within the gastric glands, there are different types of cells. One important type is the peptic cells, which are responsible for producing certain digestive enzymes.

3. **Production of Pepsinogen**: Peptic cells secrete an inactive enzyme called pepsinogen. It is important to note that pepsinogen is not active in its original form.

4. **Role of Hydrochloric Acid (HCl)**: Another type of cell in the gastric glands, known as auxentic cells, secretes hydrochloric acid (HCl). HCl plays a vital role in the activation of pepsinogen.

5. **Activation of Pepsinogen**: When HCl is present in the stomach, it activates pepsinogen, converting it into its active form, which is pepsin.

6. **Function of Pepsin**: Pepsin is an active enzyme that is crucial for digestion as it breaks down proteins into smaller peptides or peptones.

7. **Conclusion**: Therefore, the enzyme that gets activated by HCl, secreted from gastric glands, is pepsinogen, which is converted into pepsin.

**Final Answer**: The enzyme that gets activated by HCl is pepsinogen, which is converted into pepsin.

---