Waec Biology 1992 Past Questions and Answers

Question 6:

• WAEC 1992

Which of the following diseases is caused by deficiency of insulin in the body?

A. Malaria
B. Diabetes mellitus
C. Hepatitis
D. Gonorrhoea
E. Cholera

Question 7:

• WAEC 1992

Which of the following is the medium of transportation of nutrients with unicellular organisms?

A. Blood
B. Serum
C. Protoplasm
D. Plasma
E. Lymph

Question 8:

• WAEC 1992

Which of the following blood vessels carries oxygenated blood into the heart?

A. Pulmonary vein
B. Anterior vena cava
C. Pulmonary artery
D. Aorta
E. Posterior vena cava

Question 9:

• WAEC 1992

The conditions that ensure successful exchange of gases in multicellular organisms include the following except

A. Concentration gradient across the respiratory surface
B. Presence of thin membrane as the respiratory surface
C. Last transportation of absorbed gases
D. Presence of large surface area of the respiratory organ
E. Presence of small, dry surface area of the respiratory organ

Question 10:

• WAEC 1992

The conditions that ensure successful exchange of gases in multicellular organisms include the following except

A. Concentration gradient across the respiratory surface
B. Presence of thin membrane as the respiratory surface
C. Last transportation of absorbed gases
D. Presence of larg surface area of the respiratory organ
E. Presence of small, dry surface area of the respiratory organ