Jamb Biology 1985 Past Questions and Answers

Question 21:

• JAMB 1985

Blood platelets are important because they are

A. Amoeboid and nucleated
B. Produce antitoxins
C. Produce antibodies
D. Digest harmful bacteria
E. Release thrombin for blood clothing

Question 22:

• JAMB 1985

If a child can receive blood from all donors , he belongs to the blood group

A. O
B. A
C. B
D. AB
E. AS

Question 23:

• JAMB 1985

Which of the following events does NOT occur during anaerobic respiration of glucose?

A. Muscle cells produce lactic acid
B. Carbon dioxide is produced
C. Milk bacteria produce lactic acid
D. Energy is not produced
E. Germinating seeds produced alcohol

Question 24:

• JAMB 1985

Identify which of the following are characteristics of the vertebrate respiratory surface 1. Moist 2. Vascularized 3. Semipermeable 4. Freely permeable 5. Dry

A. 1, 2, 3
B. 1, 2, 5
C. 2, 3, 5
D. 2, 4, 5
E. 1, 3, 5

Question 25:

• JAMB 1985

In mammals, the function of the sebaceous gland is to

A. Produce sweat
B. Secrete sodium choride
C. Secrete water
D. Produce an oily substance
E. Manufacture vitamin D for the skin