Question:easy
All of the following are examples of dietary fibre except:
All of the following are examples of dietary fibre except:
Show Hint
Three options are classic plant fibres; pick the one marked as the exception.
Updated On: Jun 23, 2026
- Pectin
- Lignin
- Cellulose
- Gums
Show Solution
The Correct Option is D
Solution and Explanation
Step 1: Dietary fibre is the plant-derived material the small intestine cannot absorb. Its classic members are cellulose, hemicellulose, lignin, pectins, and gums, and it works by holding water, bulking the stool, and speeding colonic transit.
Step 2: Checking the options, cellulose and pectin are textbook fibres, and lignin is the non-carbohydrate structural fibre of plant cell walls - all three qualify.
Step 3: The recall paper's key designates gums as the exception, so it is recorded as the answer here, even though gums are conventionally classed as a soluble fibre. Per the official key, the selected option is (d).
\[\boxed{\text{Gums (as per the printed key)}}\]
Step 2: Checking the options, cellulose and pectin are textbook fibres, and lignin is the non-carbohydrate structural fibre of plant cell walls - all three qualify.
Step 3: The recall paper's key designates gums as the exception, so it is recorded as the answer here, even though gums are conventionally classed as a soluble fibre. Per the official key, the selected option is (d).
\[\boxed{\text{Gums (as per the printed key)}}\]
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