Source of commercial chewing gum latex is from Biology Plant Kin

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.

Lady finger belongs to family

  • Malvaceae

  • Cucurbitaceae

  • Brassicaceae

  • Liliaceae


92.

The interxylary phloem is found in the stem of

  • Cucurbita

  • Salvia

  • Calotropis

  • None of these


93.

Wound healing is due to

  • Ventral Meristem

  • Secondary meristem

  • Primary meristem

  • All of these


94.

In pteridophytes, phloem is without

  • bast fibers

  • Sieve tubes

  • Companion cells

  • Sieve cells


Advertisement
95.

 Fern spores are usually

  • Haploid

  • Diploid

  • Triploid

  • Tetraploid


96.

Which of the following supports a dense population of plankton and littoral vegetation?

  • Oligotrophic

  • Eutrophic

  • Lithotrophic

  • Agroecotrophic


97.

In which one of the family formations of endosperm doesn’t take place?

  • Orchidaceae

  • Cactaceae

  • Ranunculaceae

  • Malvaceae


Advertisement

98.

Source of commercial chewing gum latex is

  • Hevea brasiliensis

  • Carica papaya

  • Ficus elastica

  • Achras sapota


D.

Achras sapota

The latex of some plants is commercially important such as

(i) Source of commercial rubber is latex of Hevea brasiliensis, Ficus elastica, Cryptostegia. Maniho glaziou
(ii) Source of chewing or chickle gum is latex of Achras sapota
(iii) Source of enzyme papain is latex of Carica papaya


Advertisement
Advertisement
99.

Which one of the following is not a flower?

  • Shoe-flower

  • Sunflower

  • Larkspur

  • Water lily


100.

Read the following statements and choose the correct option.

I. Leptosporangiate development of sporangium is found in all membersPteropsida.

II. Seed habit is shown by sellaginella.

III. Gnetum leaves are monomorphic and pinnately compound.

IV. Sporic meiosis is found in VolvolxChalmydomonas and Ulothrix.

Choose the correct option.

  • I and IV

  • I and II

  • I, II and IV

  • All of these


Advertisement