IS_Unit12_Unit_exercise_E

A1. Proteins are essential for growth and repair of our body tissues.

• True

• False

A2. We should drink 1.5 to 2.0 L of water every day.

• True

• False

A3. Iodine test is used to show the presence of glucose in a food sample.

• True

• False

A4. Enzymes are required for the mechanical digestion of food.

• True

• False

[E] A5. Enamel, dentine and pulp cavity are all made up of living tissues.

• True

• False

[E] A6. The bacteria in the plaque react with enamel and cause tooth decay.

• True

• False

A7. We should eat most of the food shown at the bottom of the food pyramid.

• True

• False

A8. Vaccine contains living pathogens that cause disease.

• True

• False

[E] A9. All tumours will develop into cancer.

• True

• False

A10. Production of vaccines is one of the applications of biotechnology.

• True

• False