NUTRITION
DIGESTIVE SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Chewing, grinding, and churning are examples of ____
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mechanical digestion
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chemical digestion
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Either A or B
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None of the above
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Explanation:
Detailed explanation-1: -Mechanical digestion in the oral cavity consists of grinding of food into smaller pieces by the teeth, a process called mastication. Chemical digestion in the mouth is minor but consists of salivary amylase (ptyalin, or alpha-amylase) and lingual lipase, both contained in the saliva.
Detailed explanation-2: -Answer and Explanation: An example of mechanical digestion inside the mouth is chewing. Mechanical digestion is the process of breaking food down into smaller pieces using physical means, like biting, mashing or tearing.
Detailed explanation-3: -Teeth bite and chew. Tongue mashes and pushes food back. Saliva moistens food (produced by salivary glands)
There is 1 question to complete.