Multiple Choice Questions

Advertisement

Terpentine is obtained from :

  • flowers of angiosperm

  • wood of gymnosperms

  • pteridophytes

  • bacteria


B.

wood of gymnosperms

Terpentines are oleoresin which obtained by the conifers (gymnosperm). The main source of tertpentine is Pinus australis, Pinus ponderosa and Pinus canbibeae.


Advertisement

Pinus seed is originated in :

  • capsule

  • microsporophyll

  • microsporangia

  • megasporophyll


The 'power house' of cell is :

  • nucleus

  • golgi body

  • mitochondria

  • chloroplast


DNA remains absent in :

  • chloroplast

  • nucleus

  • peroxysomes

  • chromosome


Plant cell is differ from animal cell because of

  • the presence of cell wall and absence of chlorophyll in plant cell

  • the presence of cell wall and chlorophyll in plant cell

  • the absence of cell wall and presence of chloroplast in animal cell

  • the absence of cell wall and presence of chlorophyll in plant cell


Advertisement

The endosperm of Pinus is :

  • haploid

  • diploid

  • triploid

  • polyploid


Which of the following maintain the constant number of chromosomes generation after generation?

  • Meiosis

  • Endomitosis

  • Mitosis

  • Amitosis


Cotton belongs to family :

  • Solanaceae

  • Cucurbitaceae

  • Leguminoseae

  • Malvaceae


From which part of Cocos nucifera, coir is obtained :

  • Endocarp

  • Mesocarp

  • Epicarp

  • Any part of fruit


Advertisement

Photosynthetic unit is :

  • glyoxysome

  • spherosome

  • microsome

  • quantasome