S.3 Revision_nutrition

Lipase emulsify lipids into many small oil droplets.

• True

• False

Where does the chemical digestion of the food substances first begin?

• Duodenum

• Carbohydrates

• Stomach

• Lipids

• Mouth

• Proteins

Which of the following organ(s) produce digestive juice for the digestion of lipids?

• X and Z only

• X and Y only

• Y and Z only

• X, Y and Z

The process of human nutrition

• Ingestion

• Digestion

• Absorption

• Assimilation

• Egestion

Name the type of teeth that could have 3 roots.

Name the type of teeth that is absent in milk teeth dentition.

Which of the following is not a function of saliva?

• It provides a slightly alkaline medium for amylase

• It dissolves soluble substances

• It lubricates the food for swallowing

• It prevents the food from getting into the trachea

Which of the following is/are example(s) of physical digestion?

• peristalsis

• emulsifying

• churning

• hydrolysis