CBSE
Pigments common to all algae are
chlorophyll- a and phycobilins
chlorophyll- a and carotenoids
chlorophyll- a and chlorophyll- b
chlorophyll- b and carotenoids
Prothallus of fem has :
antheridia and archegonia on lower surface
antheridia and archegonia on upper surface
antheridia on upper surface and archegonia on lower
antheridia on lower surface and archegonia on upper surface
Pratonema is found in the life cycle of:
Spirogyra
Rhizopus
Escherichia
Funaria
A protein rich green alga is :
Chlorella
Spirulina
Spirogyra
Ulothrix
Agar-agar commonly used in bacterial cultures and medication is obtained from :
Sargassum
Gelidium
Ulothrix
Ulva
A bryophyte which harbours a nitrogen fixing blue-green alga in its thallus is :
Pogonatum
Riccia
Marchantia
Anthoceros
A plant having seeds but lacking flowers and fruits belong to
pteridophytes
mosses
ferns
gymnosperms
Rarely among angiosperms the pollen grains influenced the endosperm. This is called as :
Metaxenia
Nemec phenomenon
Xenia
Mesogamy
Male cone of Pinus possesses :
mega sporophylls
microsporophylls
anthers
ligules
Mosses are attached to substratum by :
roots
capsule
rhizoids
cistron