Solarisation is
formation of chlorophyll
destruction of chlorophyll
utilisation of sunlight
effects of solar light
Which is essential for root hair growth?
Zinc
Calcium
Molybdenum
Sulphur
B.
Calcium
Element | Essential for |
Zinc | Auxin synthesis |
Calcium | Root hair growth |
Molybdenum | Nitrogen fixation |
Sulphur | Protein synthesis |
A fern prothallus is bisexual. If fertilisation takes place between their gametes than it is known as
cross- fertilisation
self- fertilisation
isogamous
viviparous
Which of the following is not the feature of gymnosperms?
parallel venation
perennial plants
distinct branches (long and short branches)
xylem with vessels
Edible part in 'sorosis', a composite fruit, is
cotyledons
endosperm
perianth and peduncle
fleshy thalamus
Most primitive member, in which roots are not present, is
Psilotum
Rhynia
Lycopodium
Selaginella