Question:
Which type of cholesterol is present in gallstones?
Which type of cholesterol is present in gallstones?
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Cholesterol gallstones are made of ordered monohydrate crystals.
Updated On: Jun 23, 2026
- Amorphous cholesterol monohydrate
- Amorphous cholesterol dihydrate
- Crystalline cholesterol dihydrate
- Crystalline cholesterol monohydrate
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The Correct Option is D
Solution and Explanation
Step 1: The most common type of gallstone is the cholesterol gallstone, which forms when bile becomes supersaturated with cholesterol.
Step 2: When bile is concentrated in the gallbladder, the excess cholesterol precipitates out of solution as solid crystals. These crystals have a defined ordered structure, so they are crystalline (not amorphous).
Step 3: The specific form deposited is cholesterol monohydrate. Cholesterol gallstones are therefore composed principally of crystalline cholesterol monohydrate crystals.
Step 4: The amorphous and dihydrate options do not describe gallstone composition, so the correct answer is crystalline cholesterol monohydrate.
Step 2: When bile is concentrated in the gallbladder, the excess cholesterol precipitates out of solution as solid crystals. These crystals have a defined ordered structure, so they are crystalline (not amorphous).
Step 3: The specific form deposited is cholesterol monohydrate. Cholesterol gallstones are therefore composed principally of crystalline cholesterol monohydrate crystals.
Step 4: The amorphous and dihydrate options do not describe gallstone composition, so the correct answer is crystalline cholesterol monohydrate.
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