Abstract
Summary
The uptake of Sr85 by mitochondria from rat kidney and liver was reduced to a greater degree by added calcium than was the uptake of Ca45. Uptake of Sr85 was increased to a greater degree by addition of strontium than was the uptake of Ca45. ATP was required for the uptake of Sr85 and Ca45 by kidney mitochondria, while cytochrome c was not. Results with liver mitochondria were more variable and the requirement for ATP appeared to be influenced by calcium in the medium.
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