What enzymes are in saliva When are they activated and inactivated? Do these types of enzymes...

What enzymes are in saliva When are they activated and inactivated? Do these types of enzymes occur anywhere else in the digestive tract?

Expert Solution

Complex food substances that are taken by animals and humans must be broken down into simple, soluble, and diffusible substances before they can be absorbed. In the oral cavity, salivary glands secrete an array of enzymes and substances that aid in digestion and also disinfection. They include the following:

lingual lipase: Lipid digestion initiates in the mouth. Lingual lipase starts the digestion of the lipids/fats.

Salivary amylase: Carbohydrate digestion also initiates in the mouth. Amylase, produced by the salivary glands, breaks complex carbohydrates to smaller chains, or even simple sugars. It is sometimes referred to as ptyalin.

lysozyme: Considering that food contains more than just essential nutrients, e.g. bacteria or viruses, the lysozome offers a limited and non-specific, yet beneficial antiseptic function in digestion.

at lower temperature amylase is deactivated and at higher temperature it is denatured. optimum temperature is 32- 32 degree celcius. also pH plays umportant role optimum pH is 6-7 above this pH enzyme is denatured.

No these enzyme does not exist anywhere in the digestive tract.

Sydney Mullin answered 2 years ago

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