Question No:1

Select the incorrect statement from the following:

[A] The amides—aspargine and glutamine are found in plant as structural part of protein
[B] Amides contain less nitrogen than amino acid
[C] NH₂ radicle transported to other parts via xylem
[D] In soyabean fixed nitrogen is transported as ureides



Question No:2

Ureides have

[A] high N/C ratio
[B] low N/C ratio
[C] any of the above
[D] none



Question No:3

Which of the following is incorrect about NH^ ion?

[A] Formed by protonation of NH₃
[B] Less toxic so can be accumulated in plant
[C] Used to synthesize amino acid in plant
[D] All



Question No:4

Select true and false statement:
(a) Boron deficiency leads to stout axis
(b) Every mineral element that is present in a cell is needed by the cell
(c) Nitrogen as a nutrient element is highly immobile in the plants
(d) It is very easy to establish the essentiality of micronutrients because they are required only in trace quantities

[A] FFFT
[B] FFTT
[C] TTFF
[D] TTTF



Question No:5

What is critical concentration?

[A] Concentration of essential element which causes flowering in plant
[B] Concentration of essential element which is easily absorbed by plant
[C] Concentration of essential element below which plant growth is retarded
[D] All



Question No:6

Select true and false statement:
(1) Morphological changes which are indicative of certain element deficiencies are known as deficiency symptoms.
(2) For actively mobilized element deficiency symptoms first appear in older tissues.
(3) When element is relatively immobile deficiency symptom first appear in younger tissue.
(4) Mineral nutrition study of plant have great significance to agriculture and horticulture,

[A] FFFT
[B] FFTT
[C] TTFF
[D] TTTT



Question No:7

Deficiency symptom of N, K and Mg appears in

[A] young leaf
[B] meristematic tissue
[C] young stem
[D] senescent leaves



Question No:8

Which elements are relatively immobalized?

[A] N and P
[B] K and Mg
[C] S and Ca
[D] N and Mg



Question No:9

Deficiency symptom of plants includes

[A] chlorosis and necrosis
[B] stunted plant growth and inhibition of cell division
[C] premature fall of leaves and buds
[D] all



Question No:10

Chlorosis is caused due to the deficiency of

[A] N, K, Mg
[B] S, Fe, Mn
[C] Zn and Me
[D] All



Question No:11

Necrosis particularly leaf tissue is caused by

[A] Ca and Mg
[B] Cu
[C] K
[D] All



Question No:12

Low level of N, K, S. Mo is caused by

[A] chlorosis
[B] (c) both
[C] (b) inhibition of cell division
[D] none



Question No:13

Delay in flowering occurs due to the deficiency of

[A] N
[B] S
[C] Mo
[D] All



Question No:14

Technique of growing plants without soil in nutrient solutions is called

[A] parthenogenesis
[B] hydroponics
[C] aquaculture
[D] tissue culture



Question No:15

Which of the following element is not essential for plants?

[A] Iron
[B] Zinc
[C] Potassium
[D] Iodine



Question No:1

Inorganic nutrients are present in the soil in the form of

[A] molecules
[B] atoms
[C] electrically charged ions
[D] parasite