Which of the following secretions does not contain any enzyme -

Options

A. Bile
B. Saliva
C. Gastric Juice
D. Pancreatic Juice

Answer

To determine which of the following secretions does not contain any enzymes, let's analyze each option provided:

1. **Bile**: Bile is a digestive fluid produced by the liver and stored in the gallbladder. It is primarily composed of bile salts, bilirubin, cholesterol, and electrolytes. Importantly, bile does not contain any digestive enzymes. Its main function is to emulsify fats, which aids in their digestion and absorption.

2. **Saliva**: Saliva is produced by the salivary glands and contains the enzyme amylase, which begins the digestion of carbohydrates in the mouth. Therefore, saliva does contain enzymes.

3. **Gastric Juice**: Gastric juice is secreted by the stomach lining and contains hydrochloric acid and digestive enzymes, including pepsin, which digests proteins. Thus, gastric juice does contain enzymes.

4. **Pancreatic Juice**: Pancreatic juice is secreted by the pancreas and contains several important digestive enzymes, including amylase, lipase, and proteases. Therefore, pancreatic juice does contain enzymes.

Based on this analysis, the secretion that does not contain any enzymes is **bile**.

### Step-by-Step Solution:
1. **Identify the secretions**: List the secretions provided in the question: bile, saliva, gastric juice, and pancreatic juice.
2. **Analyze each secretion**:
- **Bile**: Check for enzymes. (No enzymes present)
- **Saliva**: Check for enzymes. (Contains amylase)
- **Gastric Juice**: Check for enzymes. (Contains pepsin)
- **Pancreatic Juice**: Check for enzymes. (Contains amylase, lipase, proteases)
3. **Determine the answer**: Conclude which secretion does not contain any enzymes. (Bile is the only one without enzymes)