Saliva contains a digestive enzyme called ______, which begins to break down some of the carbohydrates in the food even before it leaves the mouth.
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. amylase.
Saliva contains a digestive enzyme called amylase, also known as ptyalin, which begins the chemical process of digestion in the mouth. This enzyme specifically targets starch, a type of carbohydrate, breaking it down into simpler sugars like maltose. As we chew food, the mechanical action combines with the enzymatic action of amylase, starting the digestive process even before the food reaches the stomach. This early breakdown aids in smoother digestion further along the digestive tract.