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Prokaryota celler - Nvb10

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Bakteriernas energiutvinning<br />

Autotrofa bakterier<br />

Kemoautotrofer<br />

Använder energi i<br />

oorganiska ämnen till<br />

att fixera CO 2<br />

Ex.<br />

Järnbakterier<br />

• oxiderar Fe 2+ till Fe 3+ .<br />

Efter några dagar har de<br />

järnoxiderande<br />

bakterierna oxiderat<br />

järn(II)jonerna till<br />

järn(III)joner (bruna).

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