The cell wall of Phaeophyceae is composed of:
Cellulose and pectin
Cellulose and algin
Chitin
Peptidoglycan
Related Questions
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 cell wall of Phaeophyceae is composed of:
Cellulose and pectin
Cellulose and algin
Chitin
Peptidoglycan
Which of the following does not belong to class-Phaeophyceae (brown algae)?
Ectocarpus and Dictyota
Laminaria and Sargassum
Fucus and Dictyota
Polysiphonia and Gelidium
The members of brown algae are found primarily in
Freshwater habitat
Marine habitat
Terrestrial habitat
On moist rock
Mannitol is reserve food in
Rhodophyceae
Chlorophyceae
Phaeophyceae
Xanthophyceae
Laminarin and manitol of class-Phaeophyceae (brown algae) are
Proteins
Complex carbohydrates
Lipoproteins
Fat
In brown algae, brown colour is due to presence of
Carotenoids
Fucoxanthin
Phycoerythrin
Chlorophyll
The flagella in motile cells of Phaeophyceae are typically:
One
Two, apically attached
Two, laterally attached
Many
The stored food material in members of Phaeophyceae is:
Starch
Floridean Starch
Mannitol and Laminarin
Paramylon
Consider the following statements about sexual reproduction in brown algae?
I. Sexual reproduction may be oogamous isogamous or anisogamous
II. Union of gametes take place in water or within the oogonium
III. The gametes are pear-shaped and bear two laterally attached flagella
Which of the statements given above are correct?
I and II
I and III
II and III
I, II and III
