Jamb Biology 1986 Past Questions and Answers

Question 21:

• JAMB 1986

The extract from food substance reacting with sodium hydroxide and copper sulphate solutions will produce violet to purple coloration if

A. Fats are presents
B. Carbohydrate is present
C. Protein is present
D. Reducing sugar is presents

Question 22:

• JAMB 1986

The three important organs that are situated close to the stomach are

A. Kidney, liver and gall bladder
B. Pancreas, liver and kidney
C. Liver, kidney and spleen
D. Gall bladder, pancreas and spleen

Question 23:

• JAMB 1986

Evidence that a tooth is a living part of the mammalian can be found within the

A. Gum
B. Pulp cavity
C. Cement
D. Enarmel

Question 24:

• JAMB 1986

Blood circulation in a mammalian is said to be double because

A. It passes twice through the heart in a complete circuit
B. It moves in both arteries and veins
C. It circulates in both the heart and other organs
D. The heart contain auricles and ventricles

Question 25:

• JAMB 1986

Which is the correct order of water loss from the leaf? 1 Mesophyll 2 Veins 3 Substomatals cavity 4 Stomata

A. 3 → 2 → 1 → 4
B. 2 → 3 → 1 → 4
C. 2 → 1 → 3 → 4
D. 1 → 2 → 3 → 4