Read the following statements and choose the set of correct statements:
In the members of Phaeophyceae:
A. Asexual reproduction occurs usually by biflagellate zoospores.
B. Sexual reproduction is by oogamous method only.
C. Stored food is in the form of carbohydrates which is either mannitol or laminarin.
D. The major pigments found are chlorophyll a, c and carotenoids and xanthophyll.
E. Vegetative cells have a cellulosic wall, usually covered on the outside by gelatinous coating of algin.
- A
A, C, D and E only
- B
A, B, C and E only
- C
A, B, C and D only
- D
B, C, D and E only
Phaeophyceae (brown algae) reproduce asexually by biflagellate (pear-shaped) zoospores (A). Sexual reproduction may be isogamous, anisogamous or oogamous — not oogamous only, so B is wrong. Stored food is mannitol or laminarin (C). Pigments include chl-a, chl-c, carotenoids and xanthophylls (especially fucoxanthin) (D). The cell wall is cellulosic with an outer coat of algin (E). Hence A, C, D and E.
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