Plant Kingdom

Which one of the following shows isogamy with non-flagellated gametes?

1. Sargassum
2. Ectocarpus
3. Ulothrix
4. Spirogyra

An alga which can be employed as food for human being is :

1. Polysiphonia
2. Chlorella
3. Ulothrix
4. Spirogyra

Select the wrong statement

1. In Oomycetes, female gamete is smaller and motile, while male gamete is larger and non-motile.
2. Chlamydomonas exhibits both isogamy and anisogamy and Fucus shows oogamy.
3. Isogametes are similar in structure, function and behaviour.
4. Anisogametes differ either in structure, function or behaviour.

Isogamous condition with non-flagellated gametes is found in

1. Volvox
2. Fucus
3. Chlamydomonas
4. Spirogyra.

Monoecious plant of Chara shows occurrence of

1. upper antheridium and lower oogonium on the same plant
2. upper oogonium and lower antheridium on the same plant
3. antheridiophore and archegoniophore on the same plant
4. stamen and carpel on the same plant.

Read the following statements (A – E) and answer the question which follows them. How many of the above statements are correct?

1. Three
2. Four
3. One
4. Two

Besides paddy fields, cyanobacteria are also found inside vegetative part of :

1. Cycas
2. Psilotum
3. Pinus
4. Equisetum

Syngamy can occur outside the body of the organism in

1. mosses
2. algae
3. ferns
4. Fungi

What is common in all the three, Funaria, Dryopteris and Ginkgo?

1. Presence of archegonia
2. Well developed vascular tissues
3. Independent gametophyte
4. Independent sporophyte

Which one of the following is wrongly matched?

1. Spirogyra - Motile gametes
2. Sargassum - Chlorophyll
3. Basidiomycetes - Puffballs
4. Nostoc - Water blooms