A tracer element is an element added to an experiment. Then one can look for that tracer element (radioisotopes are easy to use since we can count them) and we can see where the tracer shows up; hence, we can know the path of the reaction.
No, it is not option 3. A radioisotope is called a tracer when it is used to determine the path of an element in an organism.
No, it is not option 3. A radioisotope is called a tracer when it is used to determine the path of an element in an organism. Tracers are usually radioactive isotopes of various elements that are introduced into a biological system to track and study the movement or distribution of those elements. By following the path of the radioactive tracer, scientists can gain insights into various processes or functions within the organism. So, the correct answer is option 4.
