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Questions and Answers
Which of the following is a characteristic of a microbial fuel cell (MFC)?
Which of the following is a characteristic of a microbial fuel cell (MFC)?
- It generates electric current by diverting electrons produced from the microbial oxidation of oxidized compounds on the anode to reduced compounds on the cathode.
- It generates electric current by diverting electrons produced from the microbial oxidation of reduced compounds on the anode to oxidized compounds on the cathode. (correct)
- It generates electric current by diverting electrons produced from the microbial reduction of reduced compounds on the anode to oxidized compounds on the cathode.
- It generates electric current by diverting electrons produced from the microbial reduction of oxidized compounds on the anode to reduced compounds on the cathode.
What is the difference between mediated and unmediated MFCs?
What is the difference between mediated and unmediated MFCs?
- Mediated MFCs use a mediator to transfer electrons from the bacteria to the anode, while unmediated MFCs use bacteria with electrochemically active redox proteins. (correct)
- Mediated MFCs use a mediator to transfer electrons from the bacteria to the anode, while unmediated MFCs use bacteria with electrochemically inactive redox proteins.
- Mediated MFCs use bacteria with electrochemically active redox proteins, while unmediated MFCs use a mediator to transfer electrons from the bacteria to the anode.
- Mediated MFCs use bacteria with electrochemically inactive redox proteins, while unmediated MFCs use a mediator to transfer electrons from the bacteria to the anode.
When were the first MFCs demonstrated?
When were the first MFCs demonstrated?
- In the late 20th century
- In the 19th century
- In the early 20th century (correct)
- In the 18th century
What do microbial fuel cells (MFCs) use to produce electricity?
What do microbial fuel cells (MFCs) use to produce electricity?
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What are the two general categories of MFCs?
What are the two general categories of MFCs?
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