Question

The table lists processes that occur during digestion.
 

Processes During Digestion
I.    Crushing food
II.   Mucus moistening food
III.  The enzyme pepsin acting on protein
IV.  Absorbing water
V.   Food passing to the stomach

Which of the these processes occur in the esophagus?

A.
III and V

B.
II and IV

C.
I, only

D.
V, only

Answer 1

D. V, only

The esophagus mainly moves food to the stomach (peristalsis). Crushing is done by the teeth/mouth, pepsin acts in the stomach, and most water absorption occurs in the intestines; mucus moistening is primarily from salivary glands in the mouth.