Personal Health + Diseases

Which of the following is an infectious disease?

• anaemia due to iron deficiency

• hepatitis B caused by the sharing of needles

• lung cancer caused by smoking

• diabetes mellitus due to heredity

Which of the following combinations correctly matches the disease and the type of pathogens?

• cholera by virus

• malaria by fungus

• tuberculosis by bacterium

• athlete's foot by protist

Which of the following combinations correctly matches the disease and its way of transmission?

• malaria by contact

• dengue fever by water

• athlete's foot by air

• cholera by water or food

Which of the following statements about antibiotics is incorrect?

• Antibiotics are effective against bacteria.

• Antibiotics are effective against viruses.

• Some antibiotics inhibit the growth of bacteria by interfering the synthesis of bacterial cell walls.

• Antibiotics do not destroy human cells.

Benign tumour

• Has a fast rate of growth

• Can spread to other body parts

• Formed by meiotic cell division

• Enclosed by a capsule

Malignant tumour

• Has a slow rate of growth

• Cannot spread to other body parts

• Formed by mitotic cell division

• Not enclosed by a capsule

Investigations found that smoking can cause lung cancer because cigarette smoke can

(1) destroy air sacs of the lungs.

(2) cause allergic reactions of the lungs.

(3) induce changes in DNA of the lung cells.

• (1) only

• (3) only

• (1) and (3) only

• (2) and (3) only

Which of the following are risk factors for cardiovascular diseases?

(1) smoking

(2) high blood pressure

(3) obesity

• (1) and (2) only

• (1) and (3) only

• (2) and (3) only

• (1), (2) and (3)

Which of the following occur in patients with cardiovascular disease?

(1) The lumen of the artery becomes narrower.

(2) Cholesterol deposits on the inner wall of the artery.

(3) The wall of the artery becomes more elastic.

• (1) and (2) only

• (1) and (3) only

• (2) and (3) only

• (1), (2) and (3)

Which of the following statements about diabetes is correct?

• The majority of diabetic patients suffer from insulin-dependent diabetes.

• The pancreas of patients suffering from non-insulin-dependent diabetes can produce insulin.

• The glucose level in blood is too low in diabetic patients.

• Patients suffering from non-insulin-dependent diabetes show insulin deficiency.