Motile flagellated cells are never produced by the members of

1. Chlorophyta

2. Chrysophyta

3. Phaeophyta

4. Rhodophyta

Identify the incorrect statement regarding Chlorophyceae.

The fully developed male gametophyte of an angiosperm is ________ nucleated structure and is _______________ on the sporophyte.

(1) 2, dependent

(2) 3, independent

(3) 2, independent

(4) 3, dependent

Consider the following statements:

I. The plant life cycle alternates between a haploid and a diploid phase: the haploid gamete-producing gametophyte, while the diploid spore-producing sporophyte includes the root and shoot systems.
II. In primitive plants, the gametophytes are usually free-living whereas in seed-bearing plants the gametophytes are sexually dimorphic and develop within the sexual organs of the flower.
III. The structure of the female gametophyte and the fertilization process are distinctive features of the two phylogenetic groups of seed plants, the non-flowering gymnosperms (including conifers and cycads) and the flowering angiosperms.

The correct statements are:

(1) I, II, III

(2) I and II

(3) II and III

(4) I and III

There are certain chemicals which act as stimulus for antherozoids and are secreted by

archegonia. Which of the following is not correct?

(1) Sucrose is secreted by moss archegonia

(2) Malic acid is secreted by fern archegonia

(3) Citric acid is secreted by Club moss

(4) Sodium and lipids are secreted by Riccia archegonia

In organisms with haplontic life cycle: 

(1) The zygote divides by meiosis to form haploid spores that grow into haploid individuals. 

(2) The zygote divides by mitosis to produce diploid spores that grow into diploid individuals.

(3) The zygote divides by meiosis to produce haploid gametes that develop into haploid individuals.

(4) The zygote divides by meiosis to produce diploid gametes that develop into diploid individuals. 

Which of the following pairs is of unicellular algae?

1. Gelidium and Gracilaria

2. Anabaena and Volvox

3. Chlorella and Spirulina

4. Laminaria and Sargassum

Floridian starch has structure similar to :

1. Amylopectin and glycogen

2. Mannitol and algin

3. Laminarin and cellulose

4. Starch and cellulose

Strobili or cones are found in:

Which of the following feature(s) is/are exclusive in angiosperms :-

a. Presence of fruit

b. Double fertilization

c. Female gametophyte

d. Presence of flowers

e. Formation of endosperm

f. Presence of vessels and companion cells

Tick the right one :-

1. a, b, c, e

2. b, c, d, e

3. b, d, e, f

4. a, b, d, f