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