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Johan Dahlin
2025-12-08 19:58:36 +01:00
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content/Biokemi/Gamla tentor/2023-12-18/30.md
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---
date: 2023-12-18
tags:
- biokemi
- provfråga
- elektrontransportkedjan
---
**Beskriv med en reaktionsformel hur celler hanterar att syrgas ibland enbart tar upp en elektron. (2p) (Max 25 ord)**
**Svar**
```spoiler-block
Superoxid + 2 H⁺ → H₂O₂ mha dismutas.
(superoxid = O₂·⁻)
(Väteperoxiden tas hand om av glutationperoxidas
(2 H₂O₂ → O₂ + 2 H₂O, där 2 glutation oxideras))
```