Consider the following statements regarding m | vedclass

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Question

$(A)$ Statement $(a)$ is correct: Any mineral ion concentration in tissues that reduces the dry weight of tissues by about $10\%$ is considered toxic.

Vedclass · Accepted Answer

Only $(a)$ is correct

Vedclass · Answer

$(A)$ Statement $(a)$ is correct: Any mineral ion concentration in tissues that reduces the dry weight of tissues by about $10\%$ is considered toxic. Moderate decrease in micronutrients leads to deficiency symptoms, while an increase leads to toxicity symptoms.Statement $(b)$ is correct: Manganese competes with iron and magnesium for uptake and with magnesium for binding with enzymes. It also inhibits calcium translocation in the shoot apex. Therefore, excess manganese may induce deficiencies of iron, magnesium, and calcium.Statement $(c)$ is incorrect: Toxicity is defined by an excess concentration of a mineral, not by being below a critical concentration. $A$ concentration below the critical level leads to deficiency, not toxicity.

Column-$I$	Column-$II$
$1$. Muscle contraction	$a$. $Mg^{+2}$
$2$. Digestion of food	$b$. $Ca^{+2}$
$3$. Energy exchange	$c$. $Mo$
$4$. Carbohydrate synthesis	$d$. $(PO_4)^{-3}$
$5$. Nitrogen fixation	$e$. $Cl^-$

Column $X$	Column $Y$
$(1)$ Muscle contraction	$(P)$ $Mg^{+2}$
$(2)$ Digestion of food	$(Q)$ $Ca^{+2}$
$(3)$ Energy exchange	$(R)$ $Mo$
$(4)$ Carbohydrate synthesis	$(S)$ $PO_4^{-3}$
$(5)$ Nitrogen fixation	$(T)$ $Cl^{-}$

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Select the correct match for $X$ and $Y$.
Column $X$ Column $Y$
$(1)$ Muscle contraction $(P)$ $Mg^{+2}$
$(2)$ Digestion of food $(Q)$ $Ca^{+2}$
$(3)$ Energy exchange $(R)$ $Mo$
$(4)$ Carbohydrate synthesis $(S)$ $PO_4^{-3}$
$(5)$ Nitrogen fixation $(T)$ $Cl^{-}$

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