<p>If the gall bladder of a man is removed by surgery, which of the following processes will be most seriously affected?</p>

Question 126 of 782

If the gall bladder of a man is removed by surgery, which of the following processes will be most seriously affected?

A. Digestion of fats and oil
B. Formation of urea
C. Digestion of starch
D. Conversion of protein

Correct Answer: A

Explanation

The correct option is A. Digestion of fats and oil. Detailed Explanation:

Understanding the Role of the Gall Bladder:
The gall bladder is a small organ located beneath the liver. Its primary function is to store and concentrate bile, which is produced by the liver. Bile is a digestive fluid that contains bile salts, cholesterol, and bilirubin.
When we eat foods that contain fats, the gall bladder releases bile into the small intestine. Bile salts in the bile emulsify fats, breaking them down into smaller droplets. This process increases the surface area for digestive enzymes, such as lipases, to act on the fats, facilitating their digestion and absorption.
Impact of Gall Bladder Removal:
If the gall bladder is removed (a procedure known as cholecystectomy), the body can still produce bile, but it is no longer stored in the gall bladder. Instead, bile flows directly from the liver into the small intestine.
This continuous flow of bile means that there may not be enough bile available at the right time to effectively emulsify fats, especially after a high-fat meal. As a result, the digestion and absorption of fats and oils will be significantly impaired.
Why Other Options Are Incorrect:
B. Formation of urea:
- Urea is formed in the liver through the urea cycle, which is a process that converts ammonia (a toxic byproduct of protein metabolism) into urea for excretion. The gall bladder does not play a role in this process, so its removal would not affect urea formation.
C. Digestion of starch:
- Starch digestion primarily occurs in the mouth and small intestine through the action of enzymes like amylase. The gall bladder is not involved in starch digestion, so its removal would not impact this process.
D. Conversion of protein:
- Protein digestion occurs in the stomach and small intestine through the action of enzymes such as pepsin and trypsin. The gall bladder does not contribute to protein digestion, so its removal would not affect protein conversion.

Summary of Key Points:

The gall bladder stores and concentrates bile, which is essential for fat digestion.
Removal of the gall bladder leads to a continuous flow of bile, which may not be sufficient for effective fat emulsification.
Other digestive processes, such as urea formation, starch digestion, and protein conversion, are not affected by gall bladder removal.
Understanding the specific roles of organs in digestion is crucial for grasping how surgical procedures can impact bodily functions.

Revision Summary:

The gall bladder is crucial for fat digestion by storing bile.
Removal of the gall bladder impairs the digestion of fats and oils.
Urea formation, starch digestion, and protein conversion are unaffected by gall bladder removal.
Recognizing the specific functions of digestive organs helps in understanding the consequences of surgical interventions.