1. | Polysiphonia | 2. | Laminaria |
3. | Gracilaria | 4. | Gelidium |
1. | Red algae | 2. | Green algae |
3. | Brown algae | 4. | Blue green algae |
Match each item in Column I with one in Column II and select the correct answer from the codes given:
Column I |
Column II |
A. Floridean starch |
a. It is created by photosynthesis and is made up of β(1→3)-glucan with β(1→6)-branches |
B. Laminarin |
b. An α-linked glucose polymer with a degree of branching intermediate between amylopectin and glycogen |
C. Mannitol |
c. A sugar alcohol, an isomer of sorbitol |
Codes
A | B | C | |
1. | a | b | c |
2. | a | c | b |
3. | b | a | c |
4. | c | b | a |
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 |
Red algae photosynthesize at ocean depths greater than any other group of algae and hence can be found in deepest waters because they
1. | contain a higher concentration of chlorophyll |
2. | have an extremely large surface area to capture the little amount of light that reaches them |
3. | contain the pigment phycoerythrin |
4. | periodically float to the surface and intercept light, then move back to the ocean floor |