Algal zone is present in from Biology Plant Kingdom

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131.

Heterospory is the production of

  • sexual and asexual spores

  • large and small spores

  • haploid and diploid spores

  • diploid and tetraploid spores


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132.

Algal zone is present in

  • normal root of Cycas

  • coralloid root of Cycas

  • normal root of Pinus

  • stem of Cycas


B.

coralloid root of Cycas

The cortex in coralloid roots of Cycas is divided into inner and outer regions by algal zone. The cells of this zone contain endophytic algal forms particularly Anabaena cycadeae and Nostoc punctiforme.


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133.

The Orobanche plant is

  • partial stem parasite

  • total root parasite

  • symbiont

  • total stem parasite


134.

'Reindeer moss' is common name for

  • Funaria hygrometrica

  • Marchantia sp

  • Cladonia rangifera

  • Polytrichum sp


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135.

Turpentine oil is obtained from

  • Pinus

  • Cycas

  • Cedrus

  • Delbergia


136.

In gametophyte of fern

  • prothallus is independent from sporophyte

  • prothallus is attached with sporophyte

  • it is main plant body

  • a structure attached with rhizome


137.

The lack of fruit formation in gymnosperm is due to

  • absence of fertilization

  • lack of seeds

  • naked ovule

  • sheding of immature seed


138.

'Club moss' is the common name of

  • Selaginella

  • Funaria

  • Potamogeton

  • Lycopodium


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139.

Pneumatophores (respiratory roots) are found in

  • Pistia

  • Calobranchia

  • Rhizophora

  • All of these


140.

Select the mismatched pair out of the following

  • Rhizome - Dryopteris, Nelumbo nucifera

  • Corm - Crocus sativus, Amorphophallus

  • Sucker -Curcuma domestica, Zingiber officinale

  • Tuber -Helianthus tuberosus, Solanum tuberosum


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