Biology 1988 Waec Past Questions and Answers

Question 11 :

• WAEC 1988

Which of the following statements on urine production is not correct?

A. Concentrated urine is produced under the control of antidiuretic hormone
B. The total volume of urine produced depends on the need for water excretion
C. If there is excess intake of water, dilute urine is expected
D. If there is a shortage of water in the body the volume of the urine produced is decreased
E. In the presence of antidiuretic hormone dilute urine is produced

Question 12 :

• WAEC 1988

The pigment in the malphigian layer responsible for skin colouration is known as

A. Haemoglobin
B. Haemocyanin
C. Chlorocruorin
D. Haemoerythrin
E. Melanin

Question 13 :

• WAEC 1988

Co-ordination is achieved in the body of mammals through the action of the

A. Endocrine and nervous systems
B. Skeletal and nervous systems
C. Muscular and nervous systems
D. Circulatory and nervous systems
E. Skeletal, muscular and nervous system

Question 14 :

• WAEC 1988

Which of the following statements is correct of hormones? Hormones are

A. Secreted into the blood through ducts
B. Secreted directly into the blood streem
C. Inactive chemical substance in the blood stream
D. Non-specific in their mode of action
E. Secreted at the site of the needed organ

Question 15 :

• WAEC 1988

The pituitary is called 'master gland' because

A. It is locatd in the brain
B. Its secretion are the more numerous than those of the other gland
C. Its secretion controls the other glands
D. It is the only organ that produces hormone
E. It regulates muscular movements