CBSE
Multiple Choice QuestionsA plant requires magnesium (Mg) for
Holding cells together
Protein synthesis
Chlorophyll synthesis
Cell wall development
Lathyrism is caused by
dal
moth dal
khesari dal
Glycine
Molybdenum causes
mottling
wilting
reclamation
chlorosis
Insects captured by insectivorous plants fulfil their requirements of
enzymes
oxygen
nitrogen
water
Which is essential for root hair growth?
Zinc
Calcium
Molybdenum
Sulphur
Hydroponics is a
soilless culture
airless culture
waterless culture
none of these
Heterocysts are present in
Riccia
Ulothrix
Albugo
Nostoc
The non- photosynthetic, non- symbiotic N2 fixing bacteria are
Rhodobacter
Spirillum
Azotobacter
All of these
The enzyme responsible for atmospheric nitrogen fixation is
nitrogenase
hydrogenase
oxygenase
carboxylase
The deficiencies of micro-nutrients, not only affects growth of plants but also vital functions such as photosynthetic and mitochondrial electron flow. Among the list given below, which group of three elements shall affect most, both photosynthetic and mitochondrial electron transport ?
Cu, Mn, Fe
Co, Ni, Mo
Mn, Co, Ca
Ca, K, Na
