The total essential elements for plant are

  • 20

  • 17

  • 24

  • 15

Which of the following is not kept in beneficial elements?

  • Na

  • Si

  • Co

  • K

Which of the following is a beneficial element?

  • Se

  • Fe

  • B

  • Cl2

The beneficial elements are

  • Required by higher plants

  • Na,Si,Co,Se

  • Other than 17 essential elements

  • All of these

Which of the following is not a component of biomolecule is not contribute in structural elements of cell?

  • C

  • O

  • N

  • Mg

Which of the following is not a component of  energy related chemical compound in plant?

  • Magnesium in chlorophyll

  • Phosphorus in ATP

  • Carbon in DNA

  • Both A and C

Which of the following act as an activator for ribulose bisphoshate carboxylase oxygenase?

  • Zn++

  • Mg++

  • Mn+

  • Ca++

Phosphoenol pyruvate carboxylase needs which of the following ions for activation?

  • Zn++

  • Mg++

  • Mn++

  • Ca++

Nitrogenase needs which of the following ion for activation?

  • Cr

  • Mo

  • W

  • Sg

Alcohol Dehydrogenase needs which of the following ion for activation?

  • Zn++

  • Mo

  • Cr

  • Mg++

For the opening and closing of stomata which of the following ion is important?

  • Ca++

  • Mo

  • Cr

  • K+

Nitrogen

Find the wrong one.

  • Essential nutrient element required by plants in the greatest amount

  • It is absorbed mainly as nitrite

  • It is required by all parts of the plants particularly the meristematic tissue and metabolically active cells

  • One of the major constituents of proteins, Nucleic Acid and vitamins

Nitrogen is mainly absorbed as

  • Nitrite

  • Nitrate

  • Ammonium

  • All of these

Which of the following form is absorbed for the requirement of Phosporus?

  • Dihydrogen Phosphate, Hydrogen phosphate

  • Phosphoric Acid

  • Phosphorite

  • Phosphic Acid

Phosphorus is not a component of

  • Cell membrane

  • Certain Proteins

  • Nucleosides

  • Nucleotides

Which of the following ion is required more in meristematic tissues, buds, leaves and root tips?

  • K+

  • Cl-

  • P

  • N

Which of the following is not associated with potassium ions?

  • Maintain anion-cation balance in cells

  • Involved in protein synthesis

  • Involved in opening and closing of stomata and activation of enzyme

  • Maintenance of the turgidity of the cells and all phosphorespiration reactions

Calcium is required by

Find the incorrect one.

  • Meristematic and Differentiating tissues

  • Used in synthesis of Cell membrane as calcium pectate in the middle lamella

  • It accumulates in older leaves

  • It is needed during the formation of mitotic spindle

I. Regulation of metabolic activities

II. Activation of certain enzymes

III. Involved in normal functioning of the cell wall and required for the formation of mitotic spindle.

Which of the following ion is best suitable for it?

  • Ca++

  • K+

  • Zn++

  • Cl-

Which of the following is not related to Mg?

  • Absorbed as Mg++

  • Activates the enzymes of respiration, photosynthesis

  • Involved in the synthesis of DNA and RNA

  • Involved in the formation of spindle formation

Which of the following ion is important for maintaining ribosome structure?

  • Mg++

  • Mn++

  • Ca++

  • Zn++

The component of ring structure of chlorophyll is

  • Mg

  • Ca

  • Zn

  • Cl

Which of the form of Sulphur is absorbed by plants?

  • Sulphate

  • S8

  • S4

  • SO2

The amino acid or acids which does or do not have Sulphur?

  • Cysteine

  • Methionine

  • Serine

  • Both B and C

Which of the following does not has Sulphur?

  • Thiamine

  • Biotin

  • Coenzyme A

  • Ascorbic Acid

Plants obtain Iron in the form of

  • Ferric ions

  • Ferrous ions

  • FeO

  • Both B and C

Which of the following has both sulphur and iron?

  • Ferredoxin

  • Cytochromes

  • methionine

  • cystine

Which of the following has both Fe and Mg?

  • For the formation of Ferredoxin

  • For the formation of Chlorophyll

  • For the formation of Ribosome

  • For the formation of Nucleotide

Iron is not associated with

  • absorbed in the form of ferric ions

  • It activates Catalase enzyme

  • It is essential for the formation of chlorophyll

  • It is not a part of protein.

Manganese is absorbed in the form of

  • Mn+

  • Mn++

  • Mn+++

  • MnO

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