Question

State four ways in which saliva is useful to us??
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Answer 1

Answer:

The four ways in which saliva is useful to us are:

Chemical digestion: breaks down starch by the function of “salivary amylase”

Helps chewing and swallowing

Lubricating effect: moisturizes the inside of the mouth and creates smoother speech

Solvent effect: dissolves food and allows the tongue to taste food

Cleaning effect: washes away food debris and bacteria remaining in the mouth

Antibacterial effect: Lysozyme, peroxidase and lactoferrin fight against pathogenic microorganisms

pH buffering effect: Prevents sudden changes in pH

Supplies minerals, including calcium and phosphorus, to teeth

Explanation:

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Answer 2

Answer:

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