Agar-agar commonly used in bacterial cultures and medication is obtained from :
Sargassum
Gelidium
Ulothrix
Ulva
B.
Gelidium
Agar-agar is a mucilage producedby certain red algae. The main sources of Agar-agar in Japan are the thalli of Gelidium, Gracilaria and Gigartina. It is used in the prepration of certain medicines and in cosmetics, leather and textile industries.
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?
Describe the important characteristics of gymnosperms.
Cyanobacteria are classified under
Fusion of two gametes which are dissimilar in size is termed as
Mock Test Series
