Waec Biology 2004 Past Questions and Answers

Question 26:

• WAEC 2004

Which of the following groups contains only macro-nutrients?

A. Phosphorus, nitrogen and molybdenum
B. Manganese, copper and zinc
C. Boron, sulphur and iron
D. Calcium, magnesium and potassium

Question 27:

• WAEC 2004

A solution which contains all the required elements in their correct proportions is known as a

A. Culture nutrient
B. Growth medium
C. Complete culture solution
D. Nutrient solution

Question 28:

• WAEC 2004

The deficiency of manganese in plants results in

A. Death of shoot
B. Leaves turning yellow
C. Stunted growth
D. Poor root development

Question 29:

• WAEC 2004

Which of the following is not true about a potted plant left in the laboratory for one week without watering?

A. The cells of the plant will be turgid
B. There will be wilting of the plant
C. The leaves are likely to tum yellow
D. Plant will not take in enough nutrients

Question 30:

• WAEC 2004

The deficiency of vitamin D and calcium ions in the diet of a human causes

A. Anaemia
B. Night-blindness
C. Kwashiokor
D. Rickets