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Tutorial Quiz 2

Dr Kamalul
31
Masalah tambahan (10/ 20)
Allow incorrect answer
Sembunyikan jawapan
public kuiz

masalah 1

pilihan

Which of the following statements is NOT true about the mode of action of herbicides?

  • Produce more ADP and less AMP
  • Preventive
  • Solid phase of cell membrane
  • Suppress carotenoid production

masalah 2

pilihan

Which herbicide effectively controls weeds through defoliation, but its application is restricted due to dioxin contamination affecting human health?

  • Dicamba
  • Picloram
  • 2,4-DB
  • 2,4,5-Trichlorophenoxyacetic acid

masalah 3

pilihan

Farmers practice crop rotation to improve soil structure. Which of the following herbicides are suitable to control weeds in rotational crops?

  • MCPA and Imazaquin
  • Imazaquin and Picloram
  • Picloram and Imazethapyr
  • Imazaquin and Imazethapyr

masalah 4

pilihan

Which statements about glyphosate are TRUE?

  • I and II
  • II and III
  • I and IV
  • III and IV

masalah 5

pilihan

Select the FALSE statement about movement of herbicides in plants.

  • Movement of herbicide in plant can be predicted from pKa and log Kow values
  • Only lipophilic herbicide can penetrate through plant cuticles
  • The herbicides absorbed through root can only be translocated through xylem, not phloem
  • Herbicides move using apoplast and symplast pathway

masalah 6

pilihan

Which are the basis of selectivity of herbicide?

  • Adsorption and Translocation
  • Translocation and Rate of herbicide movement
  • Rate of herbicide movement and Rate of herbicide degradation
  • Adsorption and Rate of herbicide degradation

masalah 7

pilihan

Select the most CORRECT matching of the following statements.

  • Metolachlor – post-emergence herbicide that adsorbed by root and have effect at the shoot
  • Atrazine – root adsorption and translocated to shoot to kill the weeds
  • Glyphosate – targeted the photosystem I by diverting electron away
  • Atrazine – pre-emergence herbicide that adsorbed by root and have effect at the root only

masalah 8

pilihan

Which of the following herbicides belong to the hydrophilic group?

  • Triazine and Paraquat
  • Paraquat and Glyphosate
  • Glyphosate and Tralkoxydim
  • Triazine and Tralkoxydim

masalah 9

pilihan

Select the BEST prevention strategies in weed management.

  • Land preparation by tilling the soil and cleaning farm equipment
  • Cleaning farm equipment and weed education
  • Weed education and field burning
  • Land preparation and field burning

masalah 10

pilihan

Which factor primarily influences the water solubility of certain herbicides in soil?

  • Soil temperature
  • Soil texture
  • Soil pH
  • Soil moisture content
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