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Why is it possible to trace metabolic pathways in the body using radioactive isotopes of the naturally occurring elements in the body? Because, radioactive isotopes

waelhammad
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2022-10-21
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Why is it possible to trace metabolic pathways in the body using radioactive isotopes of the naturally occurring elements in the body? Because, radioactive isotopes

  1. are used in such small quantities that they produce no toxic effects.
  2. have a very short half-life so soon decay to safe levels.
  3. are chemically identical to non-radioactive isotopes of the same element.
  4. are physically identical to non-radioactive isotopes of the same element.
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waelhammad
2022-10-21
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C: Radioactive forms of elements that occur naturally in the body will be chemically handled by the body in exactly the same way as the nonradioactive isotope. Hence their location within the body can be traced by the gamma radiation they emit.

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