Atoms in Biology - Questions Answered

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Organisms do not maintain the same atoms throughout their lives; instead, there is a constant cycle of atom replacement and recycling. When food is consumed, it contributes new atoms to the body, integrating into cellular structures. While many atoms are frequently replaced, some, like those in DNA, are retained for longer periods. Overall, the body undergoes a gradual regeneration process, leading to a significant turnover of atoms approximately every decade.
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I was just curious about atoms in biology. Do organisms have the same atoms all the time? Or are they always changing? When we eat do we gain new atoms etc. Sorry if this is a dumb question. I can't find anything on it maybe because it is to easy.
 
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Both. Many are recycled over and over while others end up occasionaly in deadend molecules that the body would rather dispose of than try to handle. The food you eat dose in a real sense become part of you.
 
That is what I thought. Thanks
 
..they are mostly replaced..it is a constant cycle or regenesis for most cellular components...some are retained for longer periods of time (the atoms in DNA) but mostly...you get a new body every decade or so (slowly of course and not completely.)
 
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