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Which one is false? I. Mobile elements...

Which one is false?
I. Mobile elements - N, P, K, Mg, Zn, Cl
II Immobile elements - Ca, Fe, S, Mn, B, Cu
III. Deficiency symptoms first appear in older leaves due to deficiency of P, K, N, Zn, Mg or Cl
IV. Deficiency symptoms first appear in young leaves due to deficiency of Ca, Cu, Fe, S, Mn or B

A

All are wrong

B

None

C

III and IV

D

I and II

Text Solution

AI Generated Solution

The correct Answer is:
To determine which statement is false, we will analyze each statement one by one. ### Step 1: Analyze Statement I **Statement I:** Mobile elements - N, P, K, Mg, Zn, Cl **Analysis:** This statement lists elements that are known to be mobile in plants. Mobile elements can move from older tissues to younger tissues when there is a deficiency. Therefore, this statement is **true**. ### Step 2: Analyze Statement II **Statement II:** Immobile elements - Ca, Fe, S, Mn, B, Cu **Analysis:** This statement lists elements that are considered immobile in plants. Immobile elements do not move from older tissues to younger tissues, which means deficiency symptoms typically appear in younger leaves. Therefore, this statement is **true**. ### Step 3: Analyze Statement III **Statement III:** Deficiency symptoms first appear in older leaves due to deficiency of P, K, N, Zn, Mg or Cl **Analysis:** This statement is correct because mobile elements (P, K, N, Zn, Mg, Cl) will be translocated from older leaves to younger leaves when there is a deficiency, causing deficiency symptoms to first appear in older leaves. Therefore, this statement is **true**. ### Step 4: Analyze Statement IV **Statement IV:** Deficiency symptoms first appear in young leaves due to deficiency of Ca, Cu, Fe, S, Mn or B **Analysis:** This statement is also correct. Since these elements are immobile, deficiency symptoms appear in the younger leaves first because they cannot be moved from older leaves. Therefore, this statement is **true**. ### Conclusion After analyzing all four statements, we find that all of them are true. Therefore, there is no false statement among the options provided. ### Final Answer None of the statements are false. ---
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