Deficiency of K+ causes_____________?
Correct answer: C. Premature death of leaves
- A. Stunted growth & strong chlorosis
- B. No electron transport chains
- C. Premature death of leaves
- D. Stunted growth of roots
Explanation
Potassium regulates enzyme activity, osmotic balance and movement of materials in plants; its deficiency can cause marginal leaf damage followed by premature death of leaves. Stunted root growth is more characteristically associated with phosphorus deficiency, so students may choose option d by confusing the two mineral-deficiency symptoms.
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