Plant Kingdom

Examine the figures (A–D) given below and select the right option, in which all the four structures A, B, C and D are identified correctly. [Figure]

1. A Offset, B Antheridiophore, C Antipodals, D Oogonium
2. A Rhizome, B Sporangiophore, C Polar cell, D Globule
3. A Sucker, B Seta, C Megaspore mother cell, D Gemma cup
4. A Runner, B Archegoniophore, C Synergid, D Antheridium

Male and female gametophytes are independent and free-living in

1. mustard
2. castor
3. Pinus
4. Sphagnum

Phylogenetic system of classification is based on

1. morphological features
2. chemical constituents
3. floral characters
4. evolutionary relationships

Which one of the following is a vascular cryptogam?

1. Ginkgo
2. Marchantia
3. Cedrus
4. Equisetum

Mannitol is the stored food in

1. Porphyra
2. Fucus
3. Gracilaria
4. Chara

Which one of the following is considered important in the development of seed habit?

1. Heterospory
2. Haplontic life cycle
3. Free-living gametophyte
4. Dependent sporophyte

Which one of the following has haplontic life cycle?

1. Polytrichum
2. Ustilago
3. Wheat
4. Funaria

Which one of the following plants is monoecious?

1. Pinus
2. Cycas
3. Papaya
4. Marchantia

Select one of the following pairs of important features distinguishing Gnetum from Cycas and Pinus and showing affinities with angiosperms.

1. Perianth and two integuments
2. Embryo development and apical meristem
3. Absence of resin duct and leaf venation
4. Presence of vessel elements and absence of archegonia

In which one of the following male and female gametophytes do not have free living independent existence?

1. Polytrichum
2. Cedrus
3. Pteris
4. Funaria