Gpb 645 Quiz 1

10 Questions

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Gpb 645 Quiz 1


Questions and Answers
  • 1. 
    Osmotic adjustment leads to the maximization of the photosynthetic process, resulting in relatively lower biomass accumulation.
    • A. 

      True

    • B. 

      False

  • 2. 
    Drought tolerance is the result of a single trait that is expressed differently depending on a variety of factors, including the severity and rate of water deficit imposition, the age and nutritional status of the plant.
    • A. 

      True

    • B. 

      False

  • 3. 
    High concentrations of Na+ can cause a nutritional imbalance in plants, which frequently involve the deficiency of ions, such as K+, Ca2+, and Cl-.
    • A. 

      True

    • B. 

      False

  • 4. 
    NHX1 enables K+ sequestration in the vacuole and its subsequent extrusion from the cell, reducing the amount of Na+ in the cytosol.
    • A. 

      True

    • B. 

      False

  • 5. 
    Mycorrhizal colonization can reduce the uptake of Cl- ions while preventing Na+ translocation to vacuole under salinity.
    • A. 

      True

    • B. 

      False

  • 6. 
    The weight of root is negatively associated with drought resistance in crops.
    • A. 

      True

    • B. 

      False

  • 7. 
    The hydrophobic part of the proline is able to bind to water molecules while its hydrophilic part is able to bind to protein, allowing proteins to access more water to enhance their solubility and to prevent protein denaturation from dehydration under osmotic stress conditions.
    • A. 

      True

    • B. 

      False

  • 8. 
    Adaptation refers to non-heritable physiological modifications that occur over the life of an individual.
    • A. 

      True

    • B. 

      False

  • 9. 
    Active transport is the movement of ions and molecules across the cell membrane without requiring energy.
    • A. 

      True

    • B. 

      False

  • 10. 
    During salinity stress, due to increased concentration of Na+ in the soil, Na+ ion competes with Cl- as they both share the same transport mechanism, thereby increasing the uptake of Cl-.
    • A. 

      True

    • B. 

      False

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