The major utility of breaking up of food into small bits during chewing is

To reduce surface area of the food eaten up

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To increase surface area of the food eaten up

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To make the food soluble

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To enjoy taste of food

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Solution

The correct option is A To increase surface area of the food eaten up
Chewing breaks the large food particles into smaller ones. The mechanical digestion of food in the mouth involves converting bite-sized pieces of food into smaller particles. This has the effect of increasing the surface area of the food particles and allowing saliva to be thoroughly mixed with them.
Hence, the correct answer is option B.

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