Advertisements
Advertisements
Question
Write any three economic importance of algae.
Advertisements
Solution
-
Agriculture: Some of the blue-green algae are essential for the fixing of atmospheric nitrogen into the soil, which increases the fertility of the soil, for example, Nostoc, Anabaena.
-
Agar-Agar: Agar Agar is extracted from some red algae, namely Gelidium, Gracillaria, etc., which is used to prepare growth medium in laboratories.
-
Iodine: Iodine is obtained from brown algae like Laminaria (kelp).
APPEARS IN
RELATED QUESTIONS
An example for colonial form of algae is
Binomial nomenclature was first introduced by _______
In polypetalae, the petals are free.
Define - Thallus.
Thallophyta, bryophyta and pteridophyta are called as ‘Cryptogams’. Gymnosperms and Angiosperms are called as ‘phanerogams’. Discuss why? Draw one example of Gymnosperm.
Assertion (A): Blue green algae are prokaryotes.
Reason (R): They do not have a true nucleus.
Polvsiohonia is a ______ alga.
Classification of algae was given by ______.
Minute algae floating on the surface of the water are called ______.
Mention two forms of algae with examples.
