Nitrogen is present in___________?

Related Mcqs:

1. Notochord is present throughout life in___________?

   A. Urochordates
   B. Cephalochordates
   C. Chordates
   D. Vertebrates

2. Brown fat present in certain mammals is specialized in___________?

   A. Providing insulation in cold environment.
   B. Providing insulation in hot environment
   C. Rapid heat production.
   D. Controlling heat production.

3. Blubber a thick layer of fat is present in___________?

   A. Fresh water mammals
   B. Terrestrial mammals
   C. Marine Mammals
   D. Flying mammals

4. Thick, waxy & leathery cuticle around leaves is present in___________?

   A. Hydrophytes
   B. Mesophytes
   C. Xerophytes
   D. Halophytes

5. Conversion of ammonia or ammonium ion into nitrites during nitrogen cycle occurs due_____________?

   A. Rhizobium
   B. Nitrosomonas
   C. Nitrobacter
   D. Pseudomonas

6. In animals excess of nitrogen is excreted primarily in form of___________?

   A. Creatinine
   B. Trimethyamine oxide
   C. Pyrimidine
   D. Ammonia

7. In bryophytes fertilization takes place in___________?

   A. Antheridia
   B. Archegonia
   C. water
   D. Ovule

8. Formation of heat shock proteins in plants results in___________?

   A. Elevation of temperature in cold conditions.
   B. Embracing the enzymes and other proteins and prevent their denaturation.
   C. Change the chemical nature of other proteins thus making them heat resistant.
   D. Help in evaporative cooling.

9. Earthworm lives in___________?

   A. sea water
   B. moist soil
   C. fresh water
   D. none of these

   Submitted by: Maryam Aftab

10. Linnaeus published the list of names of plants in___________?

    A. 1752
    B. 1753
    C. 1754
    D. 1755

    Submitted by: Muhammad Asif Gondal