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alexandr402 [8]
4 years ago
6

Two specific examples of radioactive isotopes being used as “spies”

Biology
1 answer:
hjlf4 years ago
5 0

Answer:

Carbon-14  in photosynthesis and Florbetapir (18F) in PIB of Alzheimer's disease.

Explanation:

These radioactive isotopes known as the biological spies as they tell or mark the presence or activity of a particular atom to the scientists in living beings.

For instance,

1. the process of photosynthesis can be understood by observing the radioactive isotope Carbon-14 from taking the carbon dioxide to the generation of glucose molecule by molecule process.

2. A protein that is deposited in people with Alzheimer's disease, called beta-amyloid. It is bind with another protein known as PIB, which contains  Florbetapir (18F) a radioactive isotope. It gives an idea about the location of PIB and deposits in amyloid to try to eliminate the protein deposits and check the effect of medication.

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When Timmy steps on the rose bush, the sensory receptor on his toe receives the stimuli, sends it the spinal cord through a sensory neuron which they initiates a response sent through a motor neuron to the muscle and he withdraws his leg in pain.

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