Precursor of trypsin is secreted by

Options

A. stomach
B. Intestine
C. Pancreas
D. Liver

Answer

To answer the question "Precursor of trypsin is secreted by," we will follow these steps:

### Step 1: Understand the question
The question asks about the precursor of trypsin, which is an important digestive enzyme. We need to identify where this precursor is produced.

### Step 2: Identify the precursor of trypsin
The precursor of trypsin is known as trypsinogen. It is an inactive form that is converted into the active enzyme trypsin in the digestive system.

### Step 3: Determine the source of trypsinogen
Trypsinogen is secreted by the pancreas. The pancreas is responsible for producing various digestive enzymes, including trypsinogen, which is released into the small intestine.

### Step 4: Eliminate incorrect options
- **Stomach**: The stomach secretes gastric juices and enzymes like pepsin, but not trypsinogen.
- **Intestine**: The intestine does not produce trypsinogen; it is where trypsinogen is activated.
- **Liver**: The liver produces bile and other substances but does not produce trypsinogen.

### Step 5: Confirm the correct answer
Since trypsinogen is secreted by the pancreas, the correct answer to the question is option C: pancreas.

### Final Answer:
The precursor of trypsin is secreted by the pancreas (option C).

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