Q. No.
Hydrocolloid is
(1) Water soluble substance
(2) Water holding substance
(3) Hydrogen gas containing substance
(4) Oxygen gas containing substance
(1) Water soluble substance
(2) Water holding substance
(3) Hydrogen gas containing substance
(4) Oxygen gas containing substance
Algin
(1) Water holding substance
(2) Obtained from brown algae
(3) Non sulfated water holding substance
(4) All of these
Carrageen
(1) Water holding substance
(2) Obtained from red algae
(3) Sulfated water holding substance
(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-choose correct answer
| 1. | are not Green algae |
| 2. | are not unicellular, colonial, or filamentous plant body |
| 3. | do not have pigments chlorophyll a and b |
| 4. | have pigments localised in the chloroplast |
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
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