Waec Biology 2017 Past Questions and Answers

Question 11:

• WAEC 2017

The diagram above illustrates the transverse section of a

A. Dicotyledonous root
B. Monocotyledonous root
C. Dicotyledonous stem
D. Monocotyledonous stem

Question 12:

• WAEC 2017

Which of the following actions does not occur during exhalation in man?

A. Thoracic cavity decreases in volume
B. Diaphragm flattens
C. Ribs move down and in
D. Air pressure increases in the thoracic cavity

Question 13:

• WAEC 2017

The diagram above is an illustration of the urinary tubule in a mammal. Which of the following substances is found in the part labelled II only?

A. Lipid
B. Glucose
C. Urea
D. Uric acid

Question 14:

• WAEC 2017

The diagram above is an illustration of the urinary tubule in a mammal. The part which contains lowest concentration of urea is labelled

A. I
B. II
C. III
D. IV

Question 15:

• WAEC 2017

The diagram above is an illustration of the urinary tubule in a mammal. Which of the following substances is greater in concentration in the part labelled IV when compared to that part labelled I?

A. Lipid
B. Glucose
C. Urea
D. Uric acid