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Question about cells


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Organelles need to be recycled if there are too many of a given type at a given time. Also, the proteins, fats, and carbohydrates that compose the organelles become defective through wear and tear: exposure to various chemical reactions (enzymes, free radicals, etc), defects due to changes in pH and temperature, physical trauma.


Atoms are in constant flux across the cell membrane due to concentration gradients (and active transport processes). A cell is not a closed system, it's that simple. It leaks.

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