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MCQs

Total Questions : 61 | Page 5 of 7 pages
Question 41.  Auxanometer is used for measuring
  1.    respiratory activity
  2.    photosynthetic activity
  3.    growth activity
  4.    osmotic pressure
 Discuss Question
Answer: Option C. -> growth activity
Question 42.  The study of interaction between living organism and environment is called
  1.    ecosystem
  2.    phytogeography
  3.    ecology
  4.    photosociology
 Discuss Question
Answer: Option C. -> ecology
Question 43.  In angiosperm, the endosperm is
  1.    haploid
  2.    diploid
  3.    triploid
  4.    none of these
 Discuss Question
Answer: Option C. -> triploid
Question 44.  What single feature is probably most responsible for the success of angiosperms?
  1.    Seeds
  2.    Fruit
  3.    Broad leaves
  4.    Flowers
 Discuss Question
Answer: Option D. -> Flowers
Question 45.  Gypsum is beneficial for
  1.    phosphorus enriched soil
  2.    water logged soil
  3.    alkaline soil
  4.    saline soil
 Discuss Question
Answer: Option C. -> alkaline soil
Question 46.  Lichen involves two organisms as
  1.    virus and bacteria
  2.    algae and bacteria
  3.    algae and fungi
  4.    fungi and mosses
 Discuss Question
Answer: Option C. -> algae and fungi
Question 47. . Archaeabacteria differ from the true bacteria as they have
  1.    different cell membrane lipids
  2.    cell wall composition
  3.    ribosomal RNA structure
  4.    growth not inhibited by antibiotics
 Discuss Question
Answer: Option B. -> cell wall composition
Question 48.  A very common mutualistic, symbiotic relationship between a fungus and the roots of a plant is
  1.    lichen
  2.    mycorrhizal
  3.    ascomycete
  4.    basidiomycete
 Discuss Question
Answer: Option B. -> mycorrhizal
Question 49. . In the bundle sheath of C4 plant __________ is/ are less than mesophyll.
  1.    PSI
  2.    PSII
  3.    PSI or PSII
  4.    PSI and PSII
 Discuss Question
Answer: Option B. -> PSII
Question 50. . Triticale is derived by crossing
  1.    wheat and rice
  2.    wheat and tapioca
  3.    rye (secale) and wheat
  4.    rye and rice
 Discuss Question
Answer: Option C. -> rye (secale) and wheat

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