How are pollen grains in most water-pollinated plants adapted to their environment?
Large and buoyant
Colorful and fragrant
Protected from wetting by a mucilaginous covering
Equipped with air sacs for flotation
Related Questions
Which of the following is the primary pollination agent for both water hyacinth and water lily?
Water currents
Wind
Insects
Birds
A typical angiosperm anther is
Bilobed
Dithecous
Both (1) and (2)
Monothecous
Find out the odd one.
Micropyle
Embryo sac
Nucellus
Pollen grain
The ploidy of tapetal cells is?
Hexaploidy
Pollen grains are well preserved as fossils because of the presence of
Sporopollenin
Cellulose
Pectin
Both (2) and (3)
Which of the given feature/phenomenon promotes xenogamy?
Dioecy
Homogamy
Cleistogamy
Bud pollination
‘Cells in the micropylar region are called antipodal cell’
TRUE
FALSE
Sometimes (a) and sometimes (b)
Neither (a) nor (b)
Which of the following plant products is the hardest?
Lignin
Cutin
Suberin
Sporopollenin
Pollen tube protrudes out of ?
micropyle
carpophore
germpore
stomium
Which type of pollen grains are found in insect pollinated flowers?
Hygroscopic
Light and sticky
Light and rough
Heavy and coloured
