What is not true for red algae?
1. Lack centriole and flagella
2. Accessory pigments include phycocyanin, phycoeythrin and allophycocyanin
3. They reproduce using alternation of generation
4. The stored food is floridean starch very similar to cellulose
Which of the following algae is likely to be found in the deepest waters?
(1) Green
(2) Brown
(3) Red
(4) All are found at equal depths
Which pair[s] is/are in incorrectly matched?
I. Phaeophyceae - Algin in cell wall
II. Chlorophyceae - Laminarin is stored food
III. Rhodophyceae - 2, unequal, lateral flagella
(1) Only II
(2) Only III
(3) I and II only
(4) II and III only
Chlorophyll present in red algae is
1. | a, d | 2. | a, b |
3. | a, c | 4. | b, c |
In the given diagrams, some of the algae have been labelled as A, B, C, D and E. Choose the correct option to identify these algae.
A | B | C | D | E | |
1. | Dictyota | Polysiphonia | Porphyra | Fucus | Laminaria |
2. | Porphyra | Dictyota | Laminaria | Fucus | Polyspiphonia |
3. | Dictyota | Polysiphonia | Porphyra | Laminaria | Fucus |
4. | Fucus | Porphyra | Dictyota | Polysiphonia | Laminaria |
Motile flagellated cells are never produced by the members of
1. Chlorophyta
2. Chrysophyta
3. Phaeophyta
4. Rhodophyta
Floridian starch has structure similar to :
1. Amylopectin and glycogen
2. Mannitol and algin
3. Laminarin and cellulose
4. Starch and cellulose
Which of the following is not true about red algae?
1. Predominance of r-phycoerythrin in their body
2. Majority of them are found in colder areas
3. The red thalli of most of the red algae are
multicellular
4. The food is stored as floridean starch
Phycoerythrin is the major pigment in :
(1) Red algae
(2) Blue-green algae
(3) Green algae
(4) Brown algae