Jamb Biology 2000 Past Questions and Answers

Question 21:

• JAMB 2000

The production of violet colouration, when dilute NaOH solution is added to a solution of food substance, followed by drops of 1% CuSO₄ solution while shaking, indicates the presence of

A. Protein
B. Carbohydrates
C. Fats
D. Reducing

Question 22:

• JAMB 2000

The greatest amount of energy will be obtained by the oxidation of 100kg of

A. Meat
B. Butter
C. Sugar
D. Biscuits

Question 23:

• JAMB 2000

The chamber of the mammalian heart with the thickest wall is the

A. Right ventricles
B. Left auricle
C. Right auricle
D. Left ventricle

Question 24:

• JAMB 2000

Serum differs from blood plasma because

A. Contains blood cells and fibrinogen
B. Contains soluble food and mineral salt
C. Lacks the blood protein and fibrinogen
D. Lacks blood cells and albumin

Question 25:

• JAMB 2000

The fruit represented is mainly dispersed by

A. Animals
B. Water
C. Wind
D. Birds