Bonus Article (This tiny microbe may be the key to fighting forever chemicals)
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12 Terms
What bacterium is studied in this article?
Rhodopseudomonas palustris
What harmful chemical does the bacterium interact with?
Perfluorooctanoic acid (PFOA), a type of PFAS
Why is PFOA hard to remove from the environment?
It is very stable and does not break down easily
How much PFOA did the bacterium remove in the experiment?
About 44% in 20 days
Where does the bacterium store the PFOA?
In its cell membrane
Why did some of the PFOA return to the environment?
The bacterial cells broke apart and released it
Did the bacterium fully break down PFOA?
No, it did not completely degrade it
Why is this discovery still important even though PFOA wasn’t destroyed?
It shows microbes can trap PFOA and may be improved in the future
How did the two research labs work together?
One lab studied the bacteria, and the other measured PFAS accurately
Why could microbes be useful for cleaning PFAS pollution?
They may be cheaper, use less energy, and be more environmentally friendly
What do scientists plan to study next?
Using genetic engineering and synthetic biology to improve PFAS breakdown
Why is PFAS pollution a public health concern?
PFAS stays in water and soil for a long time and can harm health
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