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Select all that applyIdentify the functions of saliva. Select all that apply.Multiple select question.Moistens food and the oral cavityNeutralizes bacterial acidsDigests proteinsDigests starch

Question

Select all that applyIdentify the functions of saliva. Select all that apply.Multiple select question.Moistens food and the oral cavityNeutralizes bacterial acidsDigests proteinsDigests starch

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Solution

The functions of saliva include:

  1. Moistens food and the oral cavity: Saliva helps to moisten food, making it easier to swallow. It also keeps the mouth hydrated, which aids in the overall health of the oral cavity.

  2. Neutralizes bacterial acids: Saliva contains bicarbonate, which helps to neutralize bacterial acids in the mouth. This helps to prevent tooth decay and maintain a balanced pH level in the mouth.

  3. Digests starch: Saliva contains an enzyme called amylase, which begins the process of starch digestion in the mouth.

However, saliva does not digest proteins. The digestion of proteins begins in the stomach, where gastric juices containing pepsin start to break down proteins into smaller peptides.

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