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

Related Mcqs:

1. Strong chlorosis is due to the deficiency of _____________ in plants?

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

2. Nodules on roots of leguminous plants have __________ bacteria?

   A. Anaerobic
   B. Nitrogen fixing
   C. Nitrifying
   D. Ammonifying

3. Deficiency of ___________ causes yellowing in plants?

   A. Magnesium
   B. Iron
   C. Chlorine
   D. Oxygen

4. Rapid growth at exponential ration occurs in which phase of bacterial growth:

   A. Lag phase
   B. Log phase
   C. Stationary phase
   D. Death / decline phase

5. Which of the following promotes growth in plants?

   A. Photorespiration
   B. Calvin cycle
   C. Both of these
   D. None of these

6. 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.

7. 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

8. True roots absent in_____________?

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

9. 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

10. 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.