11 Biology- 12 Mineral Nutrition: Online Test
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Which one of the following roles is not characteristic of an essential element? *
2 points
Which one of the following statements can best explain the term critical concentration of an essential element? *
2 points
A nitrogen-fixing microbe associated with Azolla in rice fields, is *
2 points
The best defined function of manganese in green plants, is *
2 points
Which one of the following is not an essential major mineral element for plants while the remaining three are? *
2 points
Nitrifying bacteria *
2 points
An element playing an important role in nitrogen fixation, is *
2 points
Deficiency of element zinc shows its effect on the biosynthesis of plant hormone *
2 points
The major role of minor elements inside living organisms, is to act as *
2 points
Boron in green plants assists in *
2 points
Necrosis in crops is due to the deficiency of *
2 points
In root nodules of legumes, leghaemoglobin is important, because it *
2 points
Nitrification is the process of conversion of *
2 points
Copper is present in *
2 points
The ability of venus fly trap to capture insects, is due to *
2 points
Hydroponics is growing plants in *
2 points
Inorganic nutrients are present in the soil in the form of *
2 points
Insectivorous plants eat the insects for *
2 points
Nitrite is converted into nitrate by *
2 points
The plant ash indicates *
2 points
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