1st station - Mouth Cavity

Question 1

What types of digestions do the mouth cavity contains?

Answer 1

Physical: Chewing action by teeth –> To increase the surface area for enzymes to act on
Chemical: Salivary amylase secreted by salivary gland —> digest starch into maltose

Question 2

What is the function of the salivary gland?

Answer 2

To secret saliva

Question 3

What are the components of saliva?

Answer 3

Mucus
Minerals (pH7.5)
Amylase

Question 4

What are the functions of saliva?

Answer 4

1. Mucus: Moistens, lubricates the food (forming a bolus), help swallowing
2. Minerals: To neutralize acids; prevent tooth decay
3. Amylase: Starch –> maltose