A plant require potassium (K) for
synthesizing proteins
synthesizing chlorophyII
holding its cells together
opening and closing of its stomata
A thin film of water, held by the soil particles, under the influence of internal attractive force, is called which of the following water?
capillary
combined
hygroscopic
gravitational
Electroosmotic theory for translocation of solutes was proposed by
Bose
Deurjes
Spanner
Watson
Which of the following is not caused by deficiency of mineral nutrition?
necrosis
chlorosis
etiolation
yellowing
Which of the following elements is almost non-essential for plants?
Ca
Mo
Zn
Na
The element molybdenum participates in
flowering
nitrogen fixation
chromosome coiling
carbon assimilation
Boron in green plants assists in
photosynthesis
sugar translocation
activation of enzymes
acting as enzyme cofactor
The mass flow hypothesis was first described by
Swanson
Buchana
Munch
Kurosawa
'Little leaf disease' is developed due to the deficiency of
zinc
sodium
copper
molybdenum
Active transport of minerals in a plant requires
a carrier protein
a supply of energy
a molecule against its concentration gradient
all of these