Agar-agar is obtained from which group of algae?
Chlorophyceae
Phaeophyceae
Rhodophyceae
Cyanophyceae
Related Questions
Fusion of two gametes, which are dissimilar in size is termed as
Oogamy
Isogamy
Anisogamy
Zoogamy
The alga rich in protein is
Chlorella
Ulothrix
Laminaria
Nostoc
Consider the following statements regarding reproduction in class-Chloropyceae.
I. Asexual reproduction is mainly by flagellated zoospores produced in zoosporangia.
II. The sexual reproduction shows considerable variation in the type and formation of sex cells and it may be isogamous, anisogamous and oogamous.
Which of the statements given above are correct?
Only I
Only II
I and II
None of these
Floridean starch is stored in members of
Phaeophyceae
Chlorophyceae
Cyanophycene
Rhodophyceae
In addition to mannitol, which other carbohydrate serves as a reserve food material in some brown algae?
Starch
Laminarin
Floridean starch
Paramylon
In algae asexual reproduction occurs by the production of different types of spores. The most common type of spore is
Aplanospore
Endospore
Zoospore
Oospore
Which of the following correctly represents the dominant phase in the life cycles of Ectocarpus and Fucus respectively?
Both haploid and diploid; Diploid
Diploid; Both haploid and diploid
Haploid; Diploid
Diploid; Haploid
Isogametes are not produced by
Ulothrix
Volvox
Spirogyra
Rhizopus
The cell wall of diatoms is made of:
Cellulose
Silica
Pectin
Chitin
Which of the following organisms exhibits zygotic meiosis?
Chlamydomonas
Funaria
Pinus
Homo sapiens