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Enzyme funtional at pH-2 is...

Enzyme funtional at pH-2 is

A

Trypsin

B

Pepsin

C

Lipase

D

Ptyalin.

Text Solution

AI Generated Solution

The correct Answer is:
### Step-by-Step Solution: 1. **Identify the pH Level**: The question specifies an enzyme that functions at pH 2. This is a very acidic environment. 2. **Determine Where pH 2 is Found in the Body**: The stomach is known to have a very acidic environment due to the presence of hydrochloric acid (HCl), which lowers the pH to around 1.38 to 2. 3. **Identify Enzymes Active at Low pH**: In the stomach, the primary enzyme that is active at this low pH is pepsin. Pepsin is specifically adapted to function optimally in acidic conditions. 4. **Function of Pepsin**: Pepsin is an enzyme that breaks down proteins into smaller peptides (peptones). This is crucial for the digestion of proteins in the stomach. 5. **Conclusion**: Therefore, the enzyme that functions at pH 2 is **pepsin**.
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