IS_Section Quiz_12.3-12.4_e

Mechanical digestion requires digestive enzymes.

• True

• False

Bile is produced in the liver.

• True

• False

(E) Only sugary food will cause tooth decay.

• True

• False

The energy value of food can be measured in kilojoules per gram (kJ/g).

• True

• False

The digestive system is made up of the alimentary canal and digestive glands.

• True

• False

Absorbed food substances are carried to all parts of the body via the digestive system.

• True

• False

(E) Both premolars and molars are used for crushing and grinding food.

• True

• False

If a person has a BMI of 17, his/her BMI is within the normal range.

• True

• False

(E) Which of the following statements about saliva is INCORRECT?

• A. It is secreted by the salivary glands.

• B. It helps make the food moist.

• C. It contains an enzyme for digesting starch into sugar.

• D. It is slightly acidic.

(E) The diagram shows the structure of a human tooth.

Which of the following types of tooth is shown in the diagram?

• A. Canine

• B. Incisor

• C. Molar

• D. Premolar