Mention any two functions of hydrochloric acid in gastric juice?

Explanation

**Step-by-Step Solution:**

1. **Understanding Hydrochloric Acid (HCl):** Hydrochloric acid is a strong acid that is a key component of gastric juice, which is secreted by the stomach lining.

2. **Function 1 - Provides Acidic Medium:** One of the primary functions of hydrochloric acid in gastric juice is to create an acidic environment in the stomach. This acidic medium is essential for the proper digestion of proteins.

3. **Function 2 - Activates Enzymes:** Hydrochloric acid also plays a crucial role in activating digestive enzymes, such as pepsinogen, which is converted into pepsin in the presence of acid. Pepsin is important for breaking down proteins into smaller peptides.

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