A. Potassium
B. Magnesium
C. Phosphorus
D. Iron.
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Related Mcqs:
- Strong chlorosis is due to the deficiency of _____________ in plants?
- A. Magnesium B. Nitrogen C. Potassium D. Phosphorus...
- Nodules on roots of leguminous plants have __________ bacteria?
- A. Anaerobic B. Nitrogen fixing C. Nitrifying D. Ammonifying...
- Deficiency of ___________ causes yellowing in plants?
- A. Magnesium B. Iron C. Chlorine D. Oxygen...
- 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...
- Which of the following promotes growth in plants?
- A. Photorespiration B. Calvin cycle C. Both of these D. None of these...
- 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....
- 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...
- An increrase in plant girth due to activity of _____________ is called secondary growth?
- A. Cork cambium B. Pith. C. Vascular cambium. D. Both a and c...
- True roots absent in_____________?
- A. ferns B. bryophytes C. gymnosperms D. angiosperms...
- 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....
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