Advertisements
Advertisements
प्रश्न
Write short notes on the following:
Microbial fuel cells
उत्तर
A microbial fuel cell is a bio-electrochemical system that drives an electric current by using bacteria and mimicking bacterial interaction found in nature. Microbial fuel cells work by allowing bacteria to oxidize and reduce organic molecules. Bacterial respiration is basically one big redox reaction in which electrons are being moved around. A MFC consists of an anode and a cathode separated by a proton exchange membrane. Microbes at the anode oxidize the organic fuel generating protons which pass through the membrane to the cathode and the electrons pass through the anode to the external circuit to generate current.
संबंधित प्रश्न
In which way have microbes played a major role in controlling diseases caused by harmful bacteria?
Name the microbes that help the production of the following product commercially:
Penicillin
Antibiotic Chloromycetin is obtained from ______.
Saccharomyces cerevisiae is used to produce enzyme ______.
The most common substrate used in distilleries for the production of ethanol is _______.
What is referred to as industrial alcohol? Briefly describe its preparation.
Which of the following microbe is used for the production of citric acid?
Which of the following involves the distillation process?
Which of the following are produced without distillation?
From the following identify the WRONG statements.
i. All enzymes are composed of proteins.
ii. All proteins are enzymes.
iii. Some hormones are proteins.
iv. Some nucleic acid also acts as enzymes.
v. All enzymes are inorganic in nature.
vi. Enzymes are biocatalysts.
Study the following statements and select the correct option.
i. Pseudomonas denitrificans can synthesize Vitamin B12.
ii. The microbes Neurospora gossypii and Eremothecium ashbyi produce Vitamin B2.
iii. Vitamin C can be synthesized by the microbe Rhizopus arrhizus.
Identify the equipment which is essentially required for growing microbes on a large scale, for industrial production of enzymes.
The causal organism of foolish seedling disease in rice is ____________.
Brandy is generally a product of:
Antibiotics are -
How has the discovery of antibiotics helped mankind in the field of medicine?
Name an immune immunosuppressive agent?
Match the antibiotics in column I with their microbial sources in column II:
| Column I | Column II |
| (a) Chloromycetin | (1) Streptomyces griseus |
| (b) Erythromycin | (2) Streptomyces aurifaciens |
| (c) Streptomycin | (3) Streptomyces venezuelae |
| (d) Terramycin | (4) Streptomyces erythreus |
Gluconic acid is manufactured with the help of ______.
Why are some molecules called bioactive molecules?
