Carrageen

1. Water holding substance
2. Obtained from red algae
3. Sulfated water holding substance
4. All of these

Agar is not obtained from

1. Gelidium
2. Gracilaria
3. Volvox
4. All of these

Agar is not used in

1. To grow microbes
2. To prepare ice-creams
3. To prepare jellies
4. To supplement protein for space travellers

Chlorella is not

1. An unicellular alga
2. Rich in proteins
3. Used as food supplement even by space travellers
4. Used to grow microbes

Which of the marine algae is not used as food?

1. Laminaria
2. Sargassum
3. Porphyra
4. Volvox

The members of chlorophyceae are not

1. Green algae
2. Unicellular, colonial or filamentous plant body
3. Pigments chlorophyll a and b
4. Pigments are localised in the cytoplasm

Chloroplasts can be discoid, plate-like, reticulate, cup-shaped, spiral or ribbon-shaped in different species. Such variety can be found in

1. Chlorophyceae
2. Phaeophyceae
3. Rhodophyceae
4. All of these

Pyrenoid is

1. Storage bodies located in cytoplasm of chloropbyceae
2. Storage bodies located in cytoplasm of Phaeophyceae
3. Storage bodies located in chloroplast of chlorophyceae
4. Storage bodies located in chloroplast of Phaeophyceae

Pyrenoid has

1. Protein+Starch
2. Only Protein
3. Only Starch
4. Fats+ Starch

Green algae usually have a rigid cell wall made of an inner layer of ….…. and outer layer of ………

1. Pectose, Cellulose
2. Cellulose, Pectose
3. Algin, carrageenan
4. Carrageen, Algin