Tracer Technique Quiz

What is the primary purpose of tracer technique in plant systems?

• To measure soil nutrients

• To trace biosynthetic pathways using labelled compounds

• To extract secondary metabolites

• To graft different plant species

Which of the following is NOT a method used in tracer technique?

• Root feeding

• Grafting

• Infiltration

• NMR spectroscopy

Which radioisotope is a pure β-emitter with low intensity?

• ¹⁴C

• ³H (Tritium)

• ³²P

• ¹³¹I

What is the half-life of Carbon-14?

• 5730 days

• 12.43 years

• 80.4 days

• 5730 years

Which method is used to detect stable isotopes like ²H and ¹³C?

• GM Counter

• Mass Spectrophotometer

• Liquid Scintillation Chamber

• NMR Spectroscopy

Which of the following is an application of ¹⁵N or ¹⁴C tracers?

• Photosynthesis rate detection

• Determination of purine ring atoms' origin

• Cell wall thickness estimation

• Water absorption studies

Which component emits gamma radiation?

• ³²P

• ¹⁴C

• ³⁵S

• ¹³¹I

Which of the following is a stable isotope?

• ³²P

• ¹⁴C

• ³⁵S

• ¹³C

Which of the following radioactive tracers is used in the uptake study of calcium?

• ¹³¹I

• ⁴⁵Ca

• ³H

• ¹³C

What is the significance of isotope incorporation technique?

• Identification of enzyme structure

• Understanding cleavage and bond formation in reactions

• Quantifying pigment concentration

• Increasing plant biomass