Question

In the members of Phaeophyceaе.

1. Asexual reproduction occurs usually by biflagellate zoospores.
2. Sexual reproduction is by oogamous method only.
3. Stored food is in the form of carbohydrates which is either mannitol or laminarin.
4. The major pigments found are chlorophyll a, c and carotenoids and xanthophyll.
5. Vegetative cells have a cellulosic wall, usually covered on the outside by gelatinous coating of algin.

Choose the correct answer from the options given below:

Options

• A, C, D and E only

• A, B, C and E only

• A, B, C and D only

• B, C, D and E only

Answer 1

A, C, D and E only

Explanation:

Biflagellate zoospores are the main means of asexual reproduction in Phaeophyceae. Usually, laminarin or mannitol are stored carbohydrates. Carotenoids, xanthophyll, and chlorophyll a and c are the main pigments. The cellulose wall of vegetative cells is frequently coated in a gelatinous layer of algin. Sexual reproduction can involve both isogamous and oogamous reproduction.