Absence of enterokinase will affect the following process

Options

A. Amylose `rarr` Maltose
B. Proteose `rarr` Dipeptide
C. Lipid `rarr` fatty acid + Glycerol
D. Dipeptides`rarr` Amino acids

Answer

### Step-by-Step Solution:

1. **Understanding Enterokinase**:
- Enterokinase is an enzyme found in the duodenum (the first part of the small intestine). Its primary function is to activate trypsinogen, which is an inactive precursor of the enzyme trypsin.

2. **Role of Trypsin**:
- Once activated by enterokinase, trypsin plays a crucial role in the digestion of proteins. It breaks down proteins into smaller peptides and eventually into amino acids.

3. **Analyzing the Options**:
- The question provides four processes:
1. Amylose converted into maltose
2. Protease converted into dipeptide
3. Lipid converted into fatty acid or glycerol
4. Dipeptides converting into amino acids

4. **Identifying the Impact of Enterokinase Absence**:
- If enterokinase is absent, trypsinogen cannot be converted into trypsin. This means that the breakdown of proteins into amino acids will be inhibited.
- The process of converting dipeptides into amino acids (option 4) relies on the presence of active trypsin, which is not available without enterokinase.

5. **Conclusion**:
- Therefore, the absence of enterokinase will primarily affect the process of converting dipeptides into amino acids. Hence, the correct answer is **Option D**.