Jamb Biology 1991 Past Questions and Answers

Question 16:

• JAMB 1991

Which of the following is formed immediately after the first product of photosynthesis?

A. Lipid
B. Starch
C. Oxygen
D. Sugar

Question 17:

• JAMB 1991

One of the accessory organs of the digestive system is the

A. Kidney
B. Spleen
C. Liver
D. Lung

Question 18:

• JAMB 1991

The element common to protein carbohydrate and lipid is

A. Hydrogen
B. Sulphur
C. Nitrogen
D. Phosphorus

Question 19:

• JAMB 1991

The crown of the mammalian tooth is covered with

A. Cement
B. Dentine
C. Caries
D. Enamel

Question 20:

• JAMB 1991

In the living cells, insufficient oxygen may cause a breakdown of glucose into

A. Fatty acids
B. Lactic acids
C. Glycogen
D. Carbon dioxide