Consider the following statements regarding mineral nutrition:
$(a)$ Moderate decrease or increase of micronutrients causes deficiency and toxicity symptoms respectively.
$(b)$ Excess of manganese causes toxicity of iron, calcium and molybdenum.
$(c)$ $A$ macronutrient is said to be toxic when present below a critical concentration.
Which of the above statements are correct?
$(a)$ Moderate decrease or increase of micronutrients causes deficiency and toxicity symptoms respectively.
$(b)$ Excess of manganese causes toxicity of iron, calcium and molybdenum.
$(c)$ $A$ macronutrient is said to be toxic when present below a critical concentration.
Which of the above statements are correct?
- AOnly $(a)$ is correct
- BOnly $(b)$ is correct
- C$(b)$ and $(c)$ are correct
- D$(a)$ and $(c)$ are correct
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Similar Questions
Which of the following statements are incorrect?
$I.$ Hemoglobin,myoglobin,and cytochromes are iron-containing compounds.
$II.$ Copper is important for cell division in plants.
$III.$ Biotin and riboflavin are sulfur-containing vitamins.
$IV.$ Calcium is necessary for the structure of teeth and bones.
$V.$ Manganese is required in the structure of the phosphatase enzyme.
$I.$ Hemoglobin,myoglobin,and cytochromes are iron-containing compounds.
$II.$ Copper is important for cell division in plants.
$III.$ Biotin and riboflavin are sulfur-containing vitamins.
$IV.$ Calcium is necessary for the structure of teeth and bones.
$V.$ Manganese is required in the structure of the phosphatase enzyme.
Medium
View SolutionMatch the following columns correctly:
Column $I$ Column $II$ $(a)$ Boron $(p)$ For $CO_2$ transport $(b)$ Copper $(q)$ Essential for nitrogen fixation $(c)$ Molybdenum $(r)$ Essential for sugar translocation in plants $(d)$ Chlorine $(s)$ Essential for chlorophyll synthesis in plants
| Column $I$ | Column $II$ |
| $(a)$ Boron | $(p)$ For $CO_2$ transport |
| $(b)$ Copper | $(q)$ Essential for nitrogen fixation |
| $(c)$ Molybdenum | $(r)$ Essential for sugar translocation in plants |
| $(d)$ Chlorine | $(s)$ Essential for chlorophyll synthesis in plants |
Medium
View SolutionIn which of the following conditions,plants cannot be grown?
Medium
View SolutionSelect the correct option:
$(1)$ During $transamination$ / $reductive$ $amination$,an amino group is transferred from one amino acid to the keto group of a keto acid.
$(2)$ $Azotobacter$ / $Clostridium$ are free-living bacteria.
$(1)$ During $transamination$ / $reductive$ $amination$,an amino group is transferred from one amino acid to the keto group of a keto acid.
$(2)$ $Azotobacter$ / $Clostridium$ are free-living bacteria.
Medium
View SolutionMatch the following columns:
Column-$I$ Column-$II$ $1.$ Mycorrhiza $a.$ Free-living $N_2$-fixer $2.$ Nostoc $b.$ Phosphorus absorption $3.$ Azospirillum $c.$ Leguminous plants $4.$ Rhizobium $d.$ Autotrophic $N_2$-fixer
| Column-$I$ | Column-$II$ |
| $1.$ Mycorrhiza | $a.$ Free-living $N_2$-fixer |
| $2.$ Nostoc | $b.$ Phosphorus absorption |
| $3.$ Azospirillum | $c.$ Leguminous plants |
| $4.$ Rhizobium | $d.$ Autotrophic $N_2$-fixer |
Medium
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