which of the following is an incorrect match regarding reaction, its location of and the enzyme involved

Options

A. protein rarrproteases + peptones (reaction), stomach (location), pepsin (enzyme)
B. property rarrprotease carboxypeptidase (reaction), duodenum (location), trypsin (enzyme)
C. fatsrarrdehydratase + monoglyceride (reaction), stomach (location), stomach (enzyme)
D. dipeptidase rarr amino acid (reaction), duodenum (location), dipeptidases(enzymes)

Answer

To solve the question regarding which of the following is an incorrect match concerning the reaction, its location, and the enzyme involved, we will analyze each option step by step.

### Step 1: Analyze the First Option
- **Reaction**: Peptone
- **Location**: Stomach
- **Enzyme**: Pepsin

**Evaluation**:
- Peptone is indeed a product of protein digestion.
- The stomach is the correct location for pepsin, which is the enzyme that breaks down proteins into peptides.
- **Conclusion**: This match is **correct**.

### Step 2: Analyze the Second Option
- **Reaction**: Carboxypeptidase
- **Location**: Duodenum
- **Enzyme**: Trypsin

**Evaluation**:
- Carboxypeptidase is an enzyme that acts in the duodenum, but it is produced by the pancreas, not directly referred to as a reaction center.
- Trypsin is also produced by the pancreas and acts in the duodenum.
- **Conclusion**: This match is **incorrect** because the reaction center should not be carboxypeptidase.

### Step 3: Analyze the Third Option
- **Reaction**: Monoglyceraldehyde
- **Location**: Stomach
- **Enzyme**: Stomach (not specified)

**Evaluation**:
- Monoglyceraldehyde is not a typical reaction center in digestion.
- The stomach is not the correct location for the breakdown of fats (which would involve lipases), and the stomach is not an enzyme.
- **Conclusion**: This match is **incorrect**.

### Step 4: Analyze the Fourth Option
- **Reaction**: Amino acid
- **Location**: Duodenum
- **Enzyme**: Dipeptidase

**Evaluation**:
- Amino acids are indeed the end products of protein digestion.
- The duodenum is the correct location for dipeptidase, which breaks down dipeptides into amino acids.
- **Conclusion**: This match is **correct**.

### Final Conclusion
From the analysis:
- The first option is **correct**.
- The second option is **incorrect**.
- The third option is **incorrect**.
- The fourth option is **correct**.

Thus, the **incorrect matches** are found in the second and third options.