Food is stored as fluoride starch in Rhodophyceae. Similarly Mannitol is the reserve food material of which group of algae?

1

(a)

Phaeophyceae/Brown algae.

The plant body in higher plants is well - differentiated and well - developed. Roots are the organs used for the purpose of absorption. What is the equivalent of the roots in the less developed lower plants?

1

(a)

Rhizoids.

Ther embryo sac of an angiosperm is made up of_______.

1

(a)

8 cells

(b)

7 cells and 8 nuclei

(c)

8 nuclei

(d)

7 cells and 7 nuclei

Holdfast,  stipe and frond constitute the plant body in case of ______.

1

(a)

Rhodophyyceae

(b)

Chlorophyceae

(c)

Phaeophyceae

(d)

All of these

A  Prothallus is______.

1

(a)

a structure in pteridophyte formed before the thallus develops

(b)

a sporophytic free- living structure formed in pteridophyte

(c)

a gametophytic free - living structure formed in pteridophytes

(d)

a primitive structure formed after fertilisation in ptyeridophyte