1. | r-phycoerythrin is a major pigment. |
2. | Floridean starch is stored food. |
3. | Cell wall contains poly sulphate esters. |
4. | There are 2, unequal, lateral flagellar insertions. |
A species of red algae has been discovered near Bahamas at a depth of more than 260 m. This unusual feat is possible because this alga:
1. | lacks pigmentation and functions heterotrophically as parasite on other plants |
2. | has significant amount of phycoerythrin in addition to chlorophyll a and d |
3. | unlike other red algae has flagellated gametes |
4. | it has large number of root like rhizoids enabling it to attach to a deep substratum |
1. | Chlorophyll a, d, and Phycoerythrin are present. |
2. | Stored food is Floridean starch. |
3. | Cell wall is cellulosic, having pectin and polysulphate esters. |
4. | Flagellar number and position of insertions is two unequal and lateral, respectively. |
I: | Phycoerythrin is a major photosynthetic pigment. |
II: | Floridean starch is stored food. |
III: | Cell wall contains polysulphate esters. |
IV: | Flagella are 2, unequal with lateral insertion. |
Which of the following classes of algae store food that is chemically very similar to amylopectin and glycogen?
1. | Chlorophyceae | 2. | Phaeophyceae |
3. | Rhodophyceae | 4. | All algae |
Statement I: | Red algae do not occur in well-lighted regions close to the surface of water. |
Statement II: | Red algae reproduce by non-motile spores and non-motile gametes. |
1. | Statement I is correct; Statement II is correct |
2. | Statement I is correct; Statement II is incorrect |
3. | Statement I is incorrect; Statement II is correct |
4. | Statement I is incorrect; Statement II is incorrect |
Sexual reproduction is oogamous and accompanied by complete post-fertilization developments in the members of:
1. Chlorophyceae
2. Phaeophyceae
3. Rhodophyceae
4. Both Chlorophyceae and Phaeophyceae
1. | Polysiphonia | 2. | Laminaria |
3. | Gracilaria | 4. | Gelidium |