which of the following enzymes of interstitial juice does not have direct role in digestion of nutrient?

Options

A. dipeptidase
B. erepsin
C. Enterokinase
D. Maltose

Answer

To solve the question regarding which enzyme of interstitial juice does not have a direct role in digestion of nutrients, we will analyze each of the given options step by step.

### Step 1: Understand the function of Erypsin
Erypsin is an enzyme that is secreted from the small intestine. Its primary function is to break down peptones into smaller peptides and amino acids. Since it directly participates in the digestion process, we can conclude that Erypsin has a direct role in digestion.

**Hint:** Erypsin breaks down peptones, which are proteins, directly contributing to nutrient digestion.

### Step 2: Understand the function of Dipeptidase
Dipeptidase is another enzyme released from the small intestine. Its role is to break down dipeptides into individual amino acids. This process is also a direct part of digestion, as it helps in the breakdown of proteins into absorbable units.

**Hint:** Dipeptidase acts on dipeptides, facilitating the digestion of proteins directly.

### Step 3: Understand the function of Enterokinase
Enterokinase is an enzyme that activates trypsinogen (the inactive form of trypsin) into trypsin. While this activation is crucial for the overall digestive process, Enterokinase itself does not directly break down nutrients. Instead, it plays an indirect role by activating another enzyme that will then participate in digestion.

**Hint:** Enterokinase activates trypsin but does not directly digest nutrients itself.

### Step 4: Understand the function of Maltase
Maltase is an enzyme that breaks down maltose, a disaccharide, into glucose molecules. This process is essential for carbohydrate digestion, making Maltase a direct participant in the digestion of nutrients.

**Hint:** Maltase directly breaks down maltose into glucose, aiding in carbohydrate digestion.

### Conclusion
After analyzing all the options, we find that the enzyme that does not have a direct role in the digestion of nutrients is **Enterokinase**. It is essential for activating trypsin but does not directly digest any nutrients itself.

**Final Answer:** Enterokinase