Consider the following statements regarding brown algae:
I. The pigments are chl a, c and xanthophylls, fucoxanthin
II. Storage food is laminarin and mannitol
III. The cellulosic cell wall is covered with algin
IV. They have a centrally located vacuole
V. Their photosynthetic organs are called as fronds - leaf like structures
VI. They have pear shaped biflagellate zoospores
VII. They have two unequal laterally attached flagella.
The number of correct statements is
1. 5
2. 6
3. 7
4. 4
Match the following
Algae |
Stored food |
Flagellation |
(a) Brown algae (b) Red algae (c) Green alage |
(p) Floridean starch (q) Mannitol (r) Starch |
(i) 2, lateral (ii) 2-4, apical (iii) absent |
1. (a-r-ii), (b-p-iii), (c-q-i)
2. (a-q-i), (b-p-iii), (c-r-ii)
3. (a-q-i), (b-r-ii), (c-p-iii)
4. (a-q-i), (b-p-ii), (c-r-iii)
(i) | The main plant body is the sporophyte. |
(ii) | The sporophyte is differentiated into true roots, stems, and leaves. |
(iii) | Their gametophyte lacks vascular bundle. |
(iv) | Microphylls are found in Selaginella and macrophytes in the ferns like Dryopteris. |
(v) | Strobili or cones are found in Selaginella and Equisetum. |
1. | Four | 2. | Five |
3. | Two | 4. | Three |