Previous Year Papers

Download Solved Question Papers Free for Offline Practice and view Solutions Online.

Test Series

Take Zigya Full and Sectional Test Series. Time it out for real assessment and get your results instantly.

Test Yourself

Practice and master your preparation for a specific topic or chapter. Check you scores at the end of the test.
Advertisement

 Multiple Choice QuestionsMultiple Choice Questions

91.

The lack of fruit formation in gymnosperm is due to

  • absence of fertilization

  • lack of seeds

  • naked ovule

  • sheding of immature seed


92.

'Club moss' is the common name of

  • Selaginella

  • Funaria

  • Potamogeton

  • Lycopodium


93.

Pneumatophores (respiratory roots) are found in

  • Pistia

  • Calobranchia

  • Rhizophora

  • All of these


94.

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


Advertisement
Advertisement

95.

'Gymnosperm' have how many species?

  • 1000

  • 900

  • 640

  • 300


C.

640

Gymnosperms are seed bearing vascular plants, such as cycads, ginkgo, yews and conifers in which the ovules or seeds are not enclosed in an ovary. 

About 70 Genera and 730 species of gymnosperms exist. Therefore, option 'c' is the nearest to 730 and should be considered correct.


Advertisement
96.

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

  • Perianth and no integuments

  • Embryo development and apical meristem

  • Absence of resin duct and leaf venation

  • Presence of vessel elements and absence of archegonia


97.

Pick the correct group consisting of all genera exhibiting homospory

  • Lycopodium, Psilotum, Selaginella, Equisetum

  • Equisetum, Pteris, Salvinia, Psilotum

  • Salvinia, Pteris, Lycopodium, Selaginella

  • Equisetum, Psilotum, Lycopodium, Pteris


98.

Which of the following are homosporous pteridophytes?

I. Selaginella

II. Lycopodium

III. Salvinia

IV. Equisetum

  • I and IV only

  • II and III only

  • II and IV only

  • III and IV only


Advertisement
99.

Assertion: Endomycorrhiza of forest trees contribute to the efficient nutrient cycling in tropical forest ecosystems.

Reason: The fungi that formendo-mycorrhizal associations with plants make nutrient ions available to them.

  • If both assertion and reason are true and reason is the correct explanation of assertion.

  • If both assertion and reason are true but reason is not the correct explanation of assertion.

  • If assertion is true but reason is false.

  • If both assertion and reason are false.


100.

Match the following and select correct option.

  Column1        Column2

A. Pteris           1) Gymnosperm

B. Cycas           2) Bryophyte

C. Sphagnum    3) Algae

D. Sargassum   4) Pteridophyta

  • A-(4), B-(2), C-(1), D-(3)

  • A-(4), B-(1), C-(2), D-(3)

  • A-(2), B-(3), C-(4), D-(1)

  • A-(1), B-(4), C-(3), D-(2)


Advertisement