The amount of bile released in proportion to the amount of
(a) Fat in meal
(b) Carbohydrate in meal
(c) Protein in meal
(d) All the above

Options

A. Fat in meal
B. Carbohydrate in meal
C. Protein in meal
D. All the above

Answer

To determine the amount of bile released in proportion to the components of a meal, we need to analyze the role of bile in digestion.

### Step-by-Step Solution:

1. **Understanding Bile Composition**: Bile is a digestive fluid produced by the liver and stored in the gallbladder. It primarily contains bile salts, bile pigments, and water. The key component for digestion is bile salts.

2. **Role of Bile Salts**: Bile salts are crucial for the emulsification of fats. Emulsification is the process that breaks down large fat globules into smaller droplets, increasing the surface area for digestive enzymes like lipase to act on.

3. **Bile Release Trigger**: The release of bile is primarily stimulated by the presence of fats in the diet. When fats enter the small intestine, they trigger the gallbladder to release bile into the digestive tract.

4. **Proportionality to Meal Components**:
- (a) **Fat in Meal**: The amount of bile released is directly proportional to the amount of fat consumed. More fat leads to more bile being released for effective digestion.
- (b) **Carbohydrate in Meal**: Bile is not significantly involved in carbohydrate digestion. Therefore, the amount of bile released is not influenced by carbohydrates.
- (c) **Protein in Meal**: Similarly, bile does not play a major role in protein digestion, so the amount of bile released is not influenced by proteins.
- (d) **All the Above**: Since bile release is primarily related to fat, this option is incorrect.

5. **Conclusion**: Based on the analysis, the correct answer is that the amount of bile released is in proportion to the amount of fat in the meal.

### Final Answer:
(a) Fat in meal