Which of the following is found in succus entericus ?

Options

A. Enterokinase and nucleosidase
B. Trypsinogen and lactase
C. Nucleosidase and amylopsin
D. Carboxypeptidase and amylase

Answer

To solve the question "Which of the following is found in succus entericus?", we will follow these steps:

### Step 1: Understand what succus entericus is
Succus entericus, also known as intestinal juice, is a fluid secreted by the intestinal glands in the small intestine. It contains various enzymes that aid in the digestion of food.

**Hint:** Remember that succus entericus is related to the digestion process in the intestines.

### Step 2: Identify the components of succus entericus
Succus entericus contains several hydrolytic enzymes that act on different types of nutrients. Some of these enzymes include:
- Maltase
- Sucrase
- Nucleosidase
- Nucleotidase
- Aminopeptidases
- Peptidases

**Hint:** Focus on the types of enzymes that help break down carbohydrates, proteins, and nucleic acids.

### Step 3: Analyze the options given in the question
The question provides several options, and we need to determine which of these enzymes are found in succus entericus:
1. Enterokinase and Nucleosidase
2. Trypsinogen and Lactase
3. Nucleosidase and Amylopsin
4. Carboxypeptidase and Amylase

**Hint:** Recall that some enzymes are secreted by the pancreas and not found in succus entericus.

### Step 4: Evaluate each option
- **Option 1: Enterokinase and Nucleosidase** - Both of these enzymes are present in succus entericus. Enterokinase activates trypsinogen to trypsin, and nucleosidase acts on nucleosides.

- **Option 2: Trypsinogen and Lactase** - Trypsinogen is secreted by the pancreas, not found in succus entericus. Lactase is present in the intestine but is not a primary enzyme of succus entericus.

- **Option 3: Nucleosidase and Amylopsin** - Nucleosidase is present, but amylopsin is a pancreatic enzyme.

- **Option 4: Carboxypeptidase and Amylase** - Both of these enzymes are secreted by the pancreas and are not found in succus entericus.

**Hint:** Eliminate options that contain enzymes primarily secreted by the pancreas.

### Step 5: Conclusion
After evaluating the options, the only correct answer that contains enzymes found in succus entericus is **Option 1: Enterokinase and Nucleosidase**.

**Final Answer:** Option 1: Enterokinase and Nucleosidase