Which one of the following options gives correct cetegorisation of three kind of digestive juices with their content and pH, at which they work

Options

A. `{:("A(Gastric juice)","B(Paneretic juice)","C( Intestinal juice)"),("Pepsin pH = 7.8","Trypsin pH = 1.8","Nucleases pH = 2.3"):}`
B. `{:("A(Gastric juice)","B(Paneretic juice)","C( Intestinal juice)"),("Trypsin pH = 7.8","Pepsin pH = 1.8","Nucleases pH = 1.8"):}`
C. `{:("A(Gastric juice)","B(Paneretic juice)","C( Intestinal juice)"),("Pepsin pH = 1.8","Trysin pH = 7.8","Enterokinase pH = 7.8"):}`
D. `{:("A(Gastric juice)","B(Paneretic juice)","C( Intestinal juice)"),("Pepsin pH = 1.8","Trypsin pH =2-2","Sucrase pH = 1.8"):}`

Answer

To categorize the three kinds of digestive juices along with their contents and the pH at which they function, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Digestive Juices**: The three main digestive juices we need to categorize are gastric juice, pancreatic juice, and intestinal juice.

2. **Gastric Juice**:
- **Contents**: The main components of gastric juice include hydrochloric acid (HCl) and the enzyme pepsin.
- **pH Level**: Gastric juice works effectively at a pH of 2 to 3.

3. **Pancreatic Juice**:
- **Contents**: Pancreatic juice contains several enzymes, including trypsin, chymotrypsin, and carboxypeptidase.
- **pH Level**: This juice operates at a pH of 7 to 8.

4. **Intestinal Juice**:
- **Contents**: Intestinal juice includes enzymes such as sucrase, enterokinase, and lactase, as well as nucleases.
- **pH Level**: Enterokinase and sucrase work at a pH of 7 to 8, while nucleases function at a pH of 4 to 6.

5. **Evaluate the Options**: Now, we need to check the options given in the question to find the correct categorization:
- Pepsin with pH of 7.8 (Incorrect, as it works at pH 2-3)
- Trypsin with pH of 7.8 (Correct, but not part of gastric juice)
- Pepsin with pH of 1.8 (Correct, as it works in gastric juice)
- Trypsin with pH of 7.8 (Correct, as it is part of pancreatic juice)
- Enterokinase in intestinal juice with pH of 7.8 (Correct, as it works in intestinal juice)

6. **Conclusion**: The correct option that accurately categorizes the digestive juices with their contents and pH levels is option number 3.

### Final Answer:
The correct categorization of the three kinds of digestive juices with their content and pH is option number 3.

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