The initial site of both mechanical and chemical digestion is the
A)stomach.
B)small intestine.
C)esophagus.
D)oral cavity.
E)pharynx.

Question

Quizplus · Accepted Answer

The initial site of both mechanical and chemical digestion is the oral cavity, where the teeth and tongue mechanically break down food and saliva chemically breaks down carbohydrates through the enzyme amylase. The stomach is responsible for further mechanical digestion through churning and chemical digestion through gastric juices, but it is not the initial site. The small intestine is primarily responsible for absorption rather than digestion, and the esophagus and pharynx are mainly involved in swallowing and transporting food to the stomach.

The Initial Site of Both Mechanical and Chemical Digestion Is