Phycoerythrin is the major pigment in :

(1) Red algae

(2) Blue-green algae

(3) Green algae

(4) Brown algae

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

Chlorophyll present in red algae is

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

Red algae are mostly found in    A    with abundance in the    B   .

                   A                                                B

1. Freshwater habitats                            Warmer areas

2. Marine habitats                                    Colder areas

3. Freshwater habitats                              Colder areas

4. Marine habitats                                    Warmer areas

Find out the incorrect statement about the Rhodophyceae.

1. Majority are marine with greater concentrations found in the warmer areas.

2. They are also found at great depths of oceans where relatively little light penetrates.

3. Usually reproduce vegetatively by fragmentation.

4. They reproduce asexually by biflagellate zoospores.

Which one of the following statements is wrong?
1. Algin and carrageenan are products of algae
2. Agar-agar is obtained from Gelidium and Gracilaria
3. Chlorella and Spirulina are used as space food
4. Mannitol is stored food in Rhodophyceae

Members of red algae are mostly marine, occurring both at surface water and at great depths in oceans except for a few fresh water species. These algae usually

1 Reproduce asexually by motile spores

2 Show oogamous reproduction by motile gametes

3 Lack of chlorophyll-a and fucoxanthin

4 Reproduce vegetatively by fragmentation

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