Waec Biology Past Questions and Answers

Question 736:

• WAEC 2001

Turgidity in the cell of plant does not easily lead to bursting of the cell because the

A. Cell membrane can resist the turgidity
B. Large vacuole contained in the cell, can continuously take in water
C. Cellulose cell wall can resist the turgidity
D. Cytoplasm is jelly-like

Question 737:

• WAEC 2001

Magnesium is needed by plants for

A. Protein synthesis
B. Formation of cell membrane
C. Activation of enzymes
D. Formation of chlorophyll

Question 738:

• WAEC 2001

Which of the following is not a micronutrient?

A. Manganese
B. Copper
C. Potassium
D. Zinc

Question 739:

• WAEC 2001

Loam is the best type of soil for crop production because

A. It has a high percentage of clay which prevents leaching
B. It has high humus content
C. It is porous and has good water retention capacity
D. Gravels which obstruct implements are absent from it

Question 740:

• WAEC 2001

The mineral needed for the formation of haemoglobin is

A. Magnesium
B. Iron
C. Phosphorus
D. Calcium