Nodules on roots of leguminous plants have __________ bacteria?

Related Mcqs:

1. Stunted growth of roots is due to the deficiency of____________in plants?

   A. Potassium
   B. Magnesium
   C. Phosphorus
   D. Iron.

2. Abscisic acid promotes flowering in short day plants and inhibits in long day plants, which of the following is antagonistic to abscisic acid in terms of flowering______________?

   A. Gibberellins
   B. Cytokinins
   C. Auxins
   D. Ethene.

3. Epiphytes are plants which depend on other plants for________?

   A. food
   B. mechanical support
   C. shade
   D. None of these

   Submitted by: Tauqeer Ahmad Rajput

4. On wound __________ fight foreign particles, like bacteria?

   A. White Blood cells
   B. Red Blood Cells
   C. Platelets
   D. Plasma

5. Viruses are __________ smaller than bacteria?

   A. 10 – 100 times
   B. 10 – 1000 times
   C. 100 – 1000 times
   D. 1000 – 10000 times

6. True roots absent in_____________?

   A. ferns
   B. bryophytes
   C. gymnosperms
   D. angiosperms

7. Roots of a plant show______________?

   A. Positive phototropism and negative geotropism
   B. Negative phototropism and positive geotropism
   C. Negative tactic movement and positive tropic movement
   D. Positive geotropism of stem and roots

8. Transport of minerals from soil to epidermal cells of roots via carrier protein molcules along their concentration gradient is called___________?

   A. Diffusion.
   B. Facilitated diffusion.
   C. Passive transport.
   D. Active transport.

9. Which of the following contains genes for drug and disease resistance in bacteria?

   A. Necleotide
   B. Plasmid
   C. Mesosome
   D. Ribosome

10. Many bacteria in our digestive system synthesize vitamins for example vitamin_________?

    A. B1
    B. B2
    C. B12
    D. B6

    Submitted by: Maryam Aftab