Plant Kingdom

Life cycles of Ectocarpus and Fucus respectively are

1. diplontic, haplodiplontic
2. haplodiplontic, diplontic
3. haplodiplontic, haplontic
4. haplontic, diplontic

Select the correct statement

1. Sequoia is one of the tallest trees.
2. The leaves of gymnosperms are not well adapted to extremes of climate.
3. Gymnosperms are both homosporous and heterosporous.
4. Salvinia, Ginkgo and Pinus all are gymnosperms.

In bryophytes and pteridophytes, transport of male gametes requires

1. birds
2. water
3. wind
4. insects.

Conifers are adapted to tolerate extreme environmental conditions because of

1. broad hardy leaves
2. superficial stomata
3. thick cuticle
4. presence of vessels.

Which one of the following statements is wrong?

1. Algae increase the level of dissolved oxygen in the immediate environment.
2. Algin is obtained from red algae, and carrageenan from brown algae.
3. Agar-agar is obtained from Gelidium and Gracilaria.
4. Laminaria and Sargassum are used as food.

Which one of the following statements is wrong?

1. Chlorella and Spirulina are used as space food.
2. Mannitol is stored food in Rhodophyceae.
3. Algin and carrageenan are products of algae.
4. Agar-agar is obtained from Gelidium and Gracilaria.

In which of the following, gametophyte is not independent free living?

1. Pteris
2. Pinus
3. Funaria
4. Marchantia

Read the following five statements (A to E) and select the option with all correct statements.

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

Male gametes are flagellated in

1. Ectocarpus
2. Spirogyra
3. Polysiphonia
4. Anabaena.

Which one of the following is wrong about Chara?

1. Upper oogonium and lower round antheridium
2. Globule and nucule present on the same plant
3. Upper antheridium and lower oogonium
4. Globule is male reproductive structure

Which of the following is responsible for peat formation?

1. Marchantia
2. Riccia
3. Funaria
4. Sphagnum

Male gametophyte with least number of cells is present in

1. Pteris
2. Funaria
3. Lilium
4. Pinus.

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

The plant body is thalloid in

1. Sphagnum
2. Salvinia
3. Marchantia
4. Funaria.

Which one of the following pairs is wrongly matched?

1. Ginkgo – Archegonia
2. Salvinia – Prothallus
3. Viroids – RNA
4. Mustard – Synergids

Read the following five statements (A – E) and answer as asked next to them. How many of the above statements are correct?

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

Which one of the following is common to multicellular fungi, filamentous algae and protonema of mosses?

1. Diplontic life cycle
2. Members of Kingdom Plantae
3. Mode of Nutrition
4. Multiplication by fragmentation

Which one of the following is a correct statement?

1. Pteridophyte gametophyte has a protonemal and leafy stage.
2. In gymnosperms, female gametophyte is free-living.
3. Antheridiophores and archegoniophores are present in pteridophytes.
4. Origin of seed habit can be traced in pteridophytes.

Cycas and Adiantum resemble each other in having

1. seeds
2. motile sperms
3. cambium
4. vessels

Selaginella and Salvinia are considered to represent a significant step toward evolution of seed habit because

1. female gametophyte is free and gets dispersed like seeds.
2. female gametophyte lacks archegonia.
3. megaspores possess endosperm and embryo surrounded by seed coat.
4. embryo develops in female gametophyte which is retained on parent sporophyte.

Consider the following four statements whether they are correct or wrong. The two wrong statements together are

1. A and C
2. A and D
3. B and C
4. A and B.