Waec Biology Past Questions and Answers

Question 151:

• WAEC 1991

The following are the activities of the liver except

A. Production of heat
B. Manufacture of bile
C. Detoxication of alcohol and drugs
D. Maintenance of osmotic balance
E. Deamination of excess nitrogenous substance

Question 152:

• WAEC 1991

Infective hepatitis is a disease of the

A. Heart
B. Kidney
C. Liver
D. Stomach
E. Pancreas

Question 153:

• WAEC 1991

The pituitary is regarded as the master gland because

A. It is locatd in the brain
B. Its secretion are the most numerous
C. Its secretion control other endocrine glands
D. It is the biggest endocrine gland
E. It controls the activities of the brain

Question 154:

• WAEC 1991

Growing radicles of seddlings are

A. Negatively phototropic
B. Positively phototropic
C. Negatively geotropic
D. Negatively hydrotropic
E. Positively phototactic

Question 155:

• WAEC 1991

Over-secretion of thyroxin is likely to lead to

A. Thinness in body
B. Sluggishness
C. Cretinism in infant
D. Reduced metabolism
E. Dwarfism