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BotanyNEET 2024Algae

Plant Kingdom

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 the 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 a gelatinous coating of algin.

Choose the correct answer from the options given below:

  1. A.B, C, D and E only
  2. B.A, C, D and E only✓
  3. C.A, B, C and E only
  4. D.A, B, C and D only

Solution

In Phaeophyceae (brown algae) asexual reproduction is by biflagellate zoospores (A); food is stored as mannitol or laminarin (C); pigments are chlorophyll a, c, carotenoids and xanthophyll (D); the wall is cellulose coated with algin (E). Sexual reproduction may be isogamous, anisogamous or oogamous, so B is false. Hence A, C, D and E.

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