Arrange the following in the decreasing order (most important first) of their importance, for the welfare of human society. Give reasons for your answer. Biogas, Citric acid, Penicillin and Curd
Solution and Explanation
The order of arrangemrnt of products according to their descending importance is:
Penicillin-Biogas-Citric acid-Curd
Penicillin is the most important product for the welfare of human society. It is an antibiotic which is used for controlling various bacterial diseases. The second most important product is biogas. It is an eco-friendly source of energy. The next important product is citric acid which is used as a food preservative. The least important product is curd a food item obtained by the action of lactobacillus bacteria on milk.
Hence the product in the decreasing order of their importance are as follows:
Penicillin-Biogas-Citric acid-Curd
Top Questions on Microbes in human welfare
- Which vitamin is most susceptible to destruction during cooking?
- ICAR AIEEA (PG) - 2025
- Community Science
- Microbes in human welfare
- Assertion (A): Swiss cheese is characterized by large holes due to CO2 production.
Reason (R): It is ripened by growing a specific fungi.- CBSE CLASS XII - 2025
- Biology
- Microbes in human welfare
- Student to attempt either option (A) or (B): (A) Ravi lives in a village where he suggested to the local farmers to introduce a fungus as biofertilizer into their crop fields. State the benefits provided by the fungus to the crop.
OR
(B)- [(i)] How do secondary lymphoid organs provide immunity?
- [(ii)] Highlight the role of spleen as an organ that provides immunity.
- CBSE CLASS XII - 2025
- Biology
- Microbes in human welfare
- Assertion (A): Swiss cheese is characterized by large holes due to CO2 production.
Reason (R): It is ripened by growing a specific fungi.- CBSE CLASS XII - 2025
- Biology
- Microbes in human welfare
- Large scale industrial production of streptokinase for human welfare is done using the microbe:
- CBSE CLASS XII - 2025
- Biology
- Microbes in human welfare
Questions Asked in CBSE CLASS XII exam
- For a positive constant \( a \), differentiate \( \left( t + \frac{1}{t} \right)^a \) with respect to \( t \), where \( t \) is a non-zero real number.
- CBSE CLASS XII - 2025
- Differentiation
Complete and balance the following chemical equations: (a) \[ 2MnO_4^-(aq) + 10I^-(aq) + 16H^+(aq) \rightarrow \] (b) \[ Cr_2O_7^{2-}(aq) + 6Fe^{2+}(aq) + 14H^+(aq) \rightarrow \]
- CBSE CLASS XII - 2025
- Redox Reactions
- Pulkit and Ravinder were partners in a firm sharing profits and losses in the ratio of 3 : 2. Sikander was admitted as a new partner for \( \frac{1}{5} \)th share in the profits of the firm. Pulkit, Ravinder and Sikander decided to share future profits in the ratio of 2 : 2 : 1. Sikander brought Rs 5,00,000 as his capital and Rs 10,00,000 as his share of premium for goodwill. The amount of premium for goodwill that will be credited to the old partners' capital accounts will be :
- CBSE CLASS XII - 2025
- Partnership Accounts
- What is the term used for the milk produced during the initial days of lactation?
- CBSE CLASS XII - 2025
- human health and disease
- Find: \[ I = \int (\sqrt{\tan x} + \sqrt{\cot x}) dx. \]
- CBSE CLASS XII - 2025
- Integration by Parts
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.