Q. No.Why does S and Ca deficiency not found in older parts first?
(1) As they are immobilizable
(2) As they are very abundant in older parts
(3) As newer parts are already deficient
(4) Both A and B
(1) As they are immobilizable
(2) As they are very abundant in older parts
(3) As newer parts are already deficient
(4) Both A and B
The knowledge of deficiency symptoms of mobilizable and immobilizable substances actually helps in
(1) Horticulture
(2) Agriculture
(3) Both A and B
(4) Pisciculture
Chlorosis is not
(1) Loss of chlorophyll
(2) Leading to yellowing of leaves
(3) Deficiency of elements N, K, Mg, S, Fe, Mn, Zn and Mo
(4) Accumulation of mutated chlorophyll
Any mineral ion concentration in tissues that reduces the dry weight of tissues by about 10 per cent is considered
(1) Deficient
(2) Sufficient
(3) Toxic
(4) Efficient
Apoplast is not associated with
(1) Passive flux
(2) Rapid
(3) Uptake of ions into the free space or outer space of cells
(4) Usually has no involvement of ion channels or transmembrane proteins which function as selective pore
Symplast is not associated with
(1) Active flux
(2) Slow
(3) Uptake of ions through the cell
(4) Usually has involvement of ion channels or transmembrane proteins which function as selective pore
Xylem sap has minerals is substantiated by
(1) Heavy isotope of mineral element
(2) Isobar of mineral element
(3) Radioisotopes of mineral elements
(4) Protium labelled isotope of mineral elements
The soil is enriched of dissolved ions and inorganic salts because of
(1) Raining
(2) Leaching
(3) Weathering
(4) Erosion
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