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WorksheetsTracer Technique Quiz
Total questions: 10
Worksheet time: 8mins
Which detector uses low-pressure gas to detect ionizing radiation?
NMR Spectrophotometer
Gas Ionization Chamber
GM Counter
Autoradiography
The labelled precursor is introduced into plants in the precursor-product sequence method to study:
Metabolic disorders
Rate of photosynthesis
Biogenesis of plant constituents
pH change in tissues
Which technique gives information about bond cleavage and formation?
Isotope incorporation
Double labelling
Competitive feeding
Grafting
In competitive feeding, which plant alkaloids are studied using ¹⁴C compounds?
Tropane alkaloids
Caffeine alkaloids
Steroidal alkaloids
Glycoalkaloids
What is the primary use of the autoradiography technique?
To determine isotope mass
To study radiation emission
To visualize radioactive material distribution
To analyze protein folding
Tritium is produced by:
Gamma irradiation
Neutron bombardment of lower hydrogen isotopes
Electron transfer reactions
DNA synthesis
What must be considered while selecting a tracer compound?
Must be yellow in color
Must be non-reactive
Must have high half-life and active participation in synthesis
Should degrade quickly
What kind of compound is used to study glucose in biological systems?
¹⁵N-labelled nitrate
¹⁴C-labelled glucose
³²P-labelled ATP
³⁵S-labelled protein
What is the purpose of using double or multiple labelling techniques?
To purify alkaloids
To identify nature of precursor incorporation
To destroy radioisotopes
To measure chlorophyll content
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
