Multiple Choice QuestionsWhich one of the following is a saprophytic bryophyte?
Riccia fluitans
Buxbaumia aphylla
Funaria hygrometrica
Sphagnum
Agar-agar is obtained from
Chlorella
Spirogyra
Ulothrix
Gelidium
D.
Gelidium
Gelidium, Gracilaria, Ueterocladia are red algae having industrial importance. They produce a jelly like substance agar-agar. It is used as culture medium with a umber of different uses.
Chlorella, a green algae contains 50% protein, vitamins. Antibioic chlorel in has beer extracted from Chlorella, which found to be more effective against bacteria.
Spirogyra, a green algaeis also known as water-silk.
A plant having seeds but lacking flowers and fruits belong to
pteridophytes
mosses
ferns
gymnosperms
Pigments common to all algae are
chlorophyll- a and phycobilins
chlorophyll- a and carotenoids
chlorophyll- a and chlorophyll- b
chlorophyll- b and carotenoids
Agar-agar commonly used in bacterial cultures and medication is obtained from :
Sargassum
Gelidium
Ulothrix
Ulva
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