A Science Teacher Is Talking to a Group of Fifth

Multiple Choice

A science teacher is talking to a group of fifth graders about the role of "spit." During the course of the discussion, the teacher asks the students which of the following are functions of saliva?

A) Good protection device if someone is being attacked
B) Will have more saliva production when anxious, such as right before a test
C) Has antibacterial action to help keep the mouth clean
D) Secretes acid to chemically break down fatty foods like French fries
E) Secretes the enzyme pepsin