Mineral requirements - Jamb Biology Past Questions and Answers

Question 11:

• JAMB 1988

The mineral nutrient that easily gets leached out of the soil is

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

Question 12:

• JAMB 1988

Most commercial fertilizers are rich in salts of

A. Sodium, iron and calcium
B. Nitrogen, phosphorus and potassium
C. Iron, copper and nitrogen
D. Calcium, sodium and phosphorus

Question 13:

• JAMB 1994

People who suck petrol with their mouths run the risk of increasing in their blood the concentration of

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

Question 14:

• JAMB 1997

Trace elements are required by plants mainly for the

A. Formation of pigments and enzymes
B. Production of energy and hormones
C. Manufactured of carbohydrates
D. Manufacture of proteins

Question 15:

• JAMB 1997

The element that is essential for the coagulation of blood is

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