Mannitol is the stored food in:
1. Chara
2. Porphyra
3. Fucus
4. Gracillaria
Asexual spored in brown algae are
1. Non-motile sporangiospore.
2. Biflagellated zoospores with two equal flagella.
3. Quadriflagellated zoospores with thick cell walls.
4. Biflagellated zoospores with two unequal lateral flagella.
Stipe, hold fast and frond are the terms associated with
1 Gracilaria
2 Polysiphonia
3 Laminaria
4 Chara
Which of the following groups of algae produces algin?
(1) Phaeophyceae and Chlorophyceae
(2) Rhodophyceae and Phaeophyceae
(3) Chlorophyceae and Rhodophyceae
(4) Phaeophyceae only
Mannitol is a sugar alcohol. It is as stored food in:
1. Fucus
2. Gracillaria
3. Chara
4. Porphyra
Leaf like photosynthetic organ is associated with algal group
1 Showing only oogamous reproduction
2 Having predominance of r-phycoerythrin
3 Where members may reach a height of 100 metres
4 Usually having grass-green colour
Asexaul reproduction by pear shaped biflagellate zoospores is seen in most:
1. Green algae
2. Brown algae
3. Red algae
4. Both (2) and (3)
Choose the incorrectly matched pair:
1. Ulothrix – Zygote is single celled diploid generation
2. Spirogyra – Zygote is a resistant structure
3. Cycas – Coralloid roots
4. Fucus – Isogametes
In Phaeophyceae, the spores (zoospores) are
1. Pyriform and bear 2 flagella (one longitudinal and other transverse).
2. Pear-shaped and bear 2 flagella that are laterally attached.
3. Pyriform and bear 2-8, equal and apial flagella.
4. Pear-shaped and bear 2-8, equal and apical flagella.
The members of phaeophyceae are characterized by all, except
1. | Presence of chlorophyll a, c and fucoxanthin pigments. |
2. | Production of pear-shaped and biflagellated asexual spores. |
3. | Production of pyriform gametes that bear laterally attached flagella. |
4. | Their occurrence, mostly in fresh water habitats. |