Mineral Requirements - Biology Jamb Past Questions and Answers

Question 16 :

• JAMB 1999

Yellowing of leaves is a symptom associated with deficiency of

A. Iron, calcium and magnesium
B. Nitrogen, sulphur and potassium
C. Sulphur, phosphorus and iron
D. Magnesium, nitrogen and iron

Question 17 :

• JAMB 2012

In plants which of the following is required in minute quantities for growth?

A. Copper
B. Potassium
C. Phosphorus
D. Sodium

Question 18 :

• JAMB 2021

In demonstrating the importance of mineral elements in plants, the culture bottle must be darkened to?

A. Prevent algal growth in culture solution
B. Allow root growth
C. Prevent breakdown of mineral elements
D. Prevents photosynthesis in the root