Cellulose is indigestible but necessary for ____?

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BlackTom AI · Accepted Answer

The question asks about cellulose, which is a type of dietary fiber that humans cannot digest, yet serves important bodily roles.
Option 1: "Holding food together when cooking". This is a cooking/food preparation concept, not a physiological role of dietary cellulose. Cellulose in the diet does not act as a binder during cooking; its function is related to digestion, not culinary structure.
Option 2: "Aiding in elimination of stool". This aligns with the known role of dietary fiber: it adds bulk to stool and can facilitate bowel movements, helping with regularity and elimination. This reflects a legitimate physiological purpose of cellulose in the human diet.
Option 3: "Preventing stomach cancer". While a high-fiber diet has been studied for potential associations with reduced risk of certain cancers, stating that cellulose directly prevents stomach cancer overstates the evidence and ignores the complexity of cancer etiology. This option makes a definitive claim that isn’t universally supported by data.
Option 4: "Remaining hungry". Dietary fiber actually tends to promote satiety by adding volume to meals and slowing digestion, so this option contradicts the typical effect of fiber on hunger signals.
In summary, option 2 describes the functional role of cellulose as dietary fiber in supporting stool bulk and elimination, while the other options misrepresent or overstate the function rather than reflecting its established digestive role.

NUT1102 S2 2025 Carbohydrates revision questions

Cellulose is indigestible but necessary for ____?

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