An example of a large, kelp-forming member of Phaeophyceae is:
Chlamydomonas
Spirogyra
Fucus
Macrocystis
Related Questions
Iodine is found in algae
Ulva
Ulothrix
Chlorella
Laminaria
Which of the following does not belong to class-Phaeophyceae (brown algae)?
Ectocarpus and Dictyota
Laminaria and Sargassum
Fucus and Dictyota
Polysiphonia and Gelidium
Kelp (branched form) and Sargassam (filamentous form) belongs to
Green algae
Brown algae
Red algae
Blue-green algae
In brown algae asexual reproduction takes place by
Zoospores and aplanospores
Binary fission
Budding
Conjugation
Which of these is NOT a member of Phaeophyceae?
Ectocarpus
Laminaria
Dictyota
Polysiphonia
The unique 'holdfast' structure in certain Phaeophyceae primarily serves what purpose in their challenging intertidal habitats?
Nutrient absorption from the surrounding water
Anchoring to the substrate against strong wave action
Photosynthesis by increasing surface area
Reproduction by producing motile spores
The members of Phaeophyceae are commonly called
Green-algae
Blue algae
Brown algae
Golden algae
Which specific characteristic of algin in Phaeophyceae contributes significantly to its commercial applications as a stabilizing agent?
Its high cellulose content providing structural rigidity
Its ability to form viscous gels in the presence of divalent cations
Its potent antimicrobial properties preventing spoilage
Its rapid degradation facilitating easy removal
Which of the following is a characteristic feature of Phaeophyceae cell walls?
Presence of cellulose only
Presence of chitin
Presence of algin
Absence of cell wall
Consider the following statements about brown algae
I. The largest kelps are Nereocystis and Macrocystis
II. Brown algae have gelatinous coating outside the, cellulosic cell wall called algin
III. Food obtained from Laminaria saccharina is known as ‘Kombu’
Which of the statements given above are correct?
I and II
I and III
II and III
I, II and III
