Do you think microbes can also be used as source of energy? If yes,how?
Solution and Explanation
Yes microbes can be used as a source of energy. Bacteria such as methane bacterium is used for the generation of gobar gas or biogas.
The generation of biogas is an anaerobic process in a biogas plant which consist of a concrete tank (10-15 feet deep) with sufficient outlets and inlets. The dung is mixed with water to form the slurry and thrown into the tank. The digester of the tank is filled with numerous anaerobic metane-producing bacteria which produce biogas from the slurry. Biogas can be removed from the pipe which is then used as a source of energy while the spent slurry is removed from the outlet and is used as a fertilizer.
Top Questions on Microbes in human welfare
Answer the following questions:
1. State what do you understand by “MALT”? Where is it located inside our body?
2. Explain cytokine barriers.
3. Name the diagnostic test for AIDS. On what principle does it work?
4. Bone marrow and thymus play an important role in human immune system. Explain how are they able to achieve this.- CBSE CLASS XII - 2025
- Biology
- Microbes in human welfare
Name an alcoholic drink which is produced with the help of microbes:
(1) With distillation
(2) Without distillation- CBSE CLASS XII - 2025
- Biology
- Microbes in human welfare
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- Biology
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Match the items in Column-A with that of Column-B:
- CBSE CLASS XII - 2025
- Biology
- Microbes in human welfare
- Which chemical is obtained from microorganism Aspergillus niger}?
- CBSE Compartment XII - 2025
- Biology
- Microbes in human welfare
Questions Asked in CBSE CLASS XII exam
- Altima Ltd. invited applications for 2,00,000 equity shares of ₹ 10 at a premium of ₹ 4 per share. Amount payable:
On application and allotment – ₹ 7 (incl. ₹ 1 premium)
On first and final call – Balance.
Applications received for 2,40,000 shares. 30,000 rejected. Manvi allotted 4,000 shares failed to pay first and final call. Her shares were forfeited. These were reissued at ₹ 4 per share fully paid-up.
Pass journal entries in the books of Altima Ltd.- CBSE CLASS XII - 2025
- Accounting for Share Capital
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- CBSE CLASS XII - 2025
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- If \( \int \frac{1}{2x^2} \, dx = k \cdot 2x + C \), then \( k \) is equal to:
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- Integration
- Let \( A = \begin{bmatrix} 1 & -2 & -1 \\ 0 & 4 & -1 \\ -3 & 2 & 1 \end{bmatrix}, B = \begin{bmatrix} -5 \\ -2 \end{bmatrix}, C = [9 \ \ 7], \) which of the following is defined?
- Identify, which of the following is not to be considered while estimating Revenue Deficit of a country.
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- Government Budgeting
Concepts Used:
Microbes in Human Welfare
There are several valuable microorganisms that are beneficial to humans in various manners such as:
In Household Products
- Fermentation of milk to produce yogurt.
- Milk cuddling to compose curd, cheese, and paneer.
In Industrial Products
- Production of beverages such as wine, beer, whiskey, brandy, or rum.
- Production of antibiotics such as Penicillin and other chemical substances to kill or retard the expansion of disease-causing microbes.
Fermented Beverages
- A fermentor is used to produce microbes on a large scale for industrial purposes.
- The brewer’s yeast (Saccharomyces cerevisiae) is used to make ethanol. At this time, the yeast ferments malted cereals and fruit juices.
Antibiotics
- The term antibiotic means “against life”. These materials can kill or destroy the growth of other microbes.