Question

graded quiz: nutrition and digestion
when does the digestive process begin?
a) when you swallow a bite of food
b) ten minutes after you eat
c) when you chew a bite of food
d) when food enters your mouth

Explanation:

The digestive process begins when food enters the mouth. Saliva starts to break down food chemically as soon as it enters the mouth. Chewing (mechanical digestion) also begins in the mouth, but the presence of food in the mouth triggers the start of the digestive process. Swallowing is a later step in the process, and waiting ten minutes after eating is not when the process begins.

Answer:

D. When food enters your mouth