Fundamentals of Plant Nutrition MCQs Quiz 14

1. When microbial protein synthesis is high, nitrogen is primarily _______ from soil solution

 Immobilized

 Volatilized

 Leached

 Denitrified

2. Leaching in soil refers to _______

 Upward movement of nutrients by capillarity

 Fixation of nutrients in soil colloids

 Conversion of nutrients into organic forms

 Downward movement of soluble nutrients with water

3. Potassium is essential for _______

 Nitrogen fixation

 DNA replication

 Cell wall synthesis

 Enzyme activation

4. Adequate Potassium supplementation enhances _______

 Cell division

 Root nodulation

 Chlorophyll synthesis

 Disease resistance

5. Chelation in soils primarily enhances _______

 Macronutrient fixation

 Soil erosion

 Micronutrient availability

 Water loss

6. Phosphorus is directly incorporated into the backbone structure of ______________

 Cellulose

 Lipids

 Nucleic acids

 Proteins

7. Electrical conductivity (EC) is an indicator of _______

 Soil salinity

 Soil structure

 Soil texture

 Soil cations

8. In plant tissues, potassium is generally _______

 Mobile

 Slightly mobile

 Structurally fixed

 Immobile

9. Macropores in soil primarily facilitate _______

 Cation exchange

 Nutrient fixation

 Water drainage and mass flow

 Nutrient adsorption

10. The primary physiological function of potassium in plants is to regulate _______

 Genetic information storage in nucleic acids

 Cellular osmotic balance and stomatal movement

 Structural integrity of cell walls via lignification

 Direct incorporation into amino acid structures

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Fundamentals of Plant Nutrition MCQs Quiz 14