The deficiency symptoms of mobilizable substances appear first in Older parts because
(1) In order to mobilize the elements to young part, the biomolecules of older parts are broken down
(2) In order to mobilize the elements the older part becomes weaker
(3) The work of mobilization is random and takes a lot of energy to cause it
(4) All of these
The elements which are not actively mobilizable or immobilized within the plants. The deficiency symptom is observed in
(1) Both in young and old parts
(2) Only in young parts
(3) First in old parts
(4) First in young parts
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
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
Necrosis is not caused by deficiency of
(1) Ca, K
(2) Mg, Cu
(3) Cu, Mg
(4) K, Zn
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
The movement of ions is usually called
(1) Pressure Flow
(2) Flux
(3) Diffusion
(4) Osmosis
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