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the claim
Animal cells mistake rubidium ions for potassium ions due to chemical similarity
the verdict
SUPPORTED
the evidence backs this
confidence 83/100

Scientific literature demonstrates that animal cells and tissues readily uptake rubidium ions and utilize them as a functional tracer or analogue for potassium due to their close chemical similarity.

Evidence for · 2
Potassium and Rubidium Uptake in Freshwater Bivalves
1990 · cited by 20
This study investigates rubidium influx in freshwater bivalves as a comparable mechanism to potassium transport due to their chemical similarity.
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More for · 1
Effect of imposed serum deprivation on growth of the mouse 3T3 cell. Dissociation from changes in potassium ion transport as measured from [86Rb]rubidium ion uptake
1978 · cited by 15
This study explicitly uses 86Rb+ as a radioactive analogue to measure potassium ion transport movements in mouse 3T3 cells.
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first checked01 Aug 2026
judged → SUPPORTED · 8301 Aug 2026
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