Pratonema is found in the life cycle of:
Spirogyra
Rhizopus
Escherichia
Funaria
D.
Funaria
Protonema is a thread like chain of cells that forms the earliest stage of the life cycle of mosses and liverworts. It is a juvenile filamentous stage formed by germination of spore in Funaria, Sophagum and Polytrichum.
Write a note on economic importance of algae and gymnosperms.
Both gymnosperms and angiosperms bear seeds, then why are they classified separately?
What is heterospory? Briefly comment on its significance. Give two examples.
Explain briefly the following terms with suitable examples:
(i) protonema
(ii) antheridium
(iii) archegonium
(iv) diplontic
(v) sporophyll
(vi) isogamy
Differentiate between the following:
Red algae and brown algae
Differentiate between the following:
liverworts and moss
Differentiate between the following:
homosporous and heterosporous pteridophyte
Differentiate between the following:
syngamy and triple fusion
How would you distinguish monocots from dicots?
Mock Test Series
