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Microbial fuel cells are considered a source of sustainable energy. Why?
1. They use living organisms as catalysts to generate electricity from certain substrates.
2. They use a variety of inorganic materials as substrates.
3. They can be installed in waste water treatment plants to cleanse water and produce electricity.
​Q. Which of the following statements given above is/ are correct?
  • a)
    1 only.
  • b)
    2 and 3 only.
  • c)
    1 and 3 only.
  • d)
    1,2 and 3.
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
Microbial fuel cells are considered a source of sustainable energy. Wh...
Microbial fuel cells (MFCs) are a form of sustainable energy generation that uses living organisms as catalysts to produce electricity. They have several advantages over traditional forms of energy generation, such as being environmentally friendly and having low operating costs. The correct statements regarding MFCs are:

1. They use living organisms as catalysts to generate electricity from certain substrates.
MFCs use microorganisms such as bacteria to oxidize organic matter and produce electrons. These electrons are then transferred to an electrode, creating an electrical current. MFCs can use a variety of substrates, including wastewater, organic waste, and even human urine.

2. They use a variety of inorganic materials as substrates.
This statement is incorrect. MFCs use organic matter as a substrate, not inorganic materials.

3. They can be installed in wastewater treatment plants to cleanse water and produce electricity.
MFCs can be integrated into wastewater treatment plants to clean the water and generate electricity at the same time. This is an important advantage of MFCs, as it allows for sustainable energy generation while also treating waste.

In conclusion, MFCs are a promising source of sustainable energy that use living organisms as catalysts to generate electricity. They can use a variety of organic substrates and can be integrated into wastewater treatment plants to produce electricity and clean water at the same time.
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Community Answer
Microbial fuel cells are considered a source of sustainable energy. Wh...
Microbial Fuel Cells (MFCs) - a novel source of energy for new millennium: Continued use of petroleum fuels is now widely recognized as unsustainable because of their depleting supplies and the contribution of these fuels to the accumulation of carbon dioxide in the environment. Renewable, carbon neutral, transport fuels are necessary for environmental and economic sustainability. A microbial fuel cell (MFC), a novel form of microbial respiration has recently been discovered, it is a bioreactor that converts chemical energy present in the organic compounds (in the form of chemical bonds) to electrical energy through catalytic reactions of microorganisms under anaerobic conditions. These organisms, termed electricigens, Microbial fuel cells (MFCs) provide new opportunities for the sustainable production of energy from biodegradable compounds. MFCs function on different carbohydrates and also on complex substrates present in wastewaters and renewable biomass. Biomass, especially organic waste, is being considered as a valuable candidate. The use of biomass, in the case of waste organics, is environment friendly and regarded as a renewable energy source.
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Microbial fuel cells are considered a source of sustainable energy. Why?1. They use living organisms as catalysts to generate electricity from certain substrates.2. They use a variety of inorganic materials as substrates.3. They can be installed in waste water treatment plants to cleanse water and produce electricity.Q.Which of the following statements given above is/ are correct?a)1 only.b)2 and 3 only.c)1 and 3 only.d)1,2 and 3.Correct answer is option 'C'. Can you explain this answer? for UPSC 2026 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about Microbial fuel cells are considered a source of sustainable energy. Why?1. They use living organisms as catalysts to generate electricity from certain substrates.2. They use a variety of inorganic materials as substrates.3. They can be installed in waste water treatment plants to cleanse water and produce electricity.Q.Which of the following statements given above is/ are correct?a)1 only.b)2 and 3 only.c)1 and 3 only.d)1,2 and 3.Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for UPSC 2026 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Microbial fuel cells are considered a source of sustainable energy. Why?1. They use living organisms as catalysts to generate electricity from certain substrates.2. They use a variety of inorganic materials as substrates.3. They can be installed in waste water treatment plants to cleanse water and produce electricity.Q.Which of the following statements given above is/ are correct?a)1 only.b)2 and 3 only.c)1 and 3 only.d)1,2 and 3.Correct answer is option 'C'. Can you explain this answer?.
Solutions for Microbial fuel cells are considered a source of sustainable energy. Why?1. They use living organisms as catalysts to generate electricity from certain substrates.2. They use a variety of inorganic materials as substrates.3. They can be installed in waste water treatment plants to cleanse water and produce electricity.Q.Which of the following statements given above is/ are correct?a)1 only.b)2 and 3 only.c)1 and 3 only.d)1,2 and 3.Correct answer is option 'C'. Can you explain this answer? in English & in Hindi are available as part of our courses for UPSC. Download more important topics, notes, lectures and mock test series for UPSC Exam by signing up for free.
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