Tag: discoveries by louis pasteur
Questions Related to discoveries by louis pasteur
Find out the incorrect statement from the following.
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White revolution was meant for increase in milk production
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Blue revolution was meant for increase in fish production
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Increasing food production without compromising with environmental quality is called sustainable agriculture
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None of these
- None of the above statements are wrong.
Blue Revolution means a remarkable increase in the production of fish and marine products. It saw the emergence of aquaculture as one of the most important forms of agricultural activity. Aquaculture means all forms of active culture of animals and plants living in marine, brackish or freshwater. The Blue revolution was launched by Union Minister for agriculture Mr. RadhaMohan Singh.
Sustainable agriculture - There is one sector that has continuously impacted the environment that sector is agriculture. For the human race to sustain there is a lot dependent on environment-friendly agriculture. We have been doing intensive agriculture, using loads of pesticides, chemical fertilizers and harming the environment. India is facing a food crisis due to the massive and regular destruction of farmlands. Therefore, sustainable agriculture focuses mainly on -
b) to stop the promotion of genetically engineered crops as they pose a threat to human health and degrades the food quality.
Therefore all the above statements are correct.
Who is the pioneer of 'White revolution' in India?
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Swaminathan
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Verghese Kurien
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Dhiru Bhai Ambani
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S.K. Birla
Verghese Kurien known as the 'Father of the White Revolution' in India,[2] was a social entrepreneur whose "billion-litre idea", Operation Flood, the world's largest agricultural dairy development programme, made dairy farming India's largest self-sustaining industry and the largest rural employment provider, being a third of all rural income, with benefits of raising incomes and credit, riddance of debt dependence, nutrition, education, health, gender parity and empowerment, breakdown of caste barriers and grassroots democracy and leadership. It made India the world's largest milk producer from a milk-deficient nation, which doubled milk available per person and increased milk output four-fold, in 30 years. A key invention at Amul, the world's first, was the production of milk powder from the abundant buffalo-milk, instead of from the conventional cow-milk, short in supply in India. Keen on a strong linkage between town and country, he surmounted skepticism and adversity with his indefatigable fighting spirit and outmaneuvering skills to capture a commanding share of the market of the city of Bombay (now, Mumbai), which got him wide attention.
Mark the incorrect statement:
a) Pasteurization inactivates some microbes
b) It destroys some organisms
c) Makes the milk tasty
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a, b
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b, c
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a, c
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All
Pasteurized milk can be consumed without boiling as it is free from harmful microbes. The milk is heated to about $700^{\circ}C$ for $15$ to $30$ seconds and then suddenly chilled and stored. By doing so, it prevents the growth of microbes. This process was discovered by Louis Pasteur. It is called pasteurization.
The term antibiotic was coined by
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Edward Jenner
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Louis Pasteur
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Selman Waksman
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Alexander Fleming
Waksman is credited with coining the term antibiotics, to describe compounds derived from other living organisms such as penicillin, though the term was first used by the French dermatologist François Henri Hallopeau, in 1871, to describe a substance opposed to the development of life
Pasteur effect is due to
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Change from aerobic to anaerobic
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Providing oxygen to anaerobically respiring structures
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Rapid utilisation of ATP
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Nonsynthesis of ATP
Most microorganisms such as fungi and bacteria can grow and flourish in the complete absence of oxygen and is known as fermentation. Pasteur described that fermentation is directly associated with the growth of metabolism of living matter. He observed that the rate of fermentation was considerably higher under anaerobic conditions as compared to aerobic conditions. The inhibition of anaerobic breakdown of sugars into carbon dioxide and ethyl alcohol due to the presence of oxygen under aerobic conditions is known as Pasteur effect.
The method of growing micro-organisms as a thin layer on a nutrient medium is known as
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Thin layer growth system
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Support growth system
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Suspended growth
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None of these
Support growth system refers to a process in which the microorganisms are grown on a thin layer of nutrient medium. A nutrient medium provides various nutrients required for the growth of microorganism to carry out their metabolic activities. The nutrient media supports the growth of a wide range of microorganisms. So, the correct answer is 'Support growth system'.
Exceptions to Koch's postulates are
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Viruses
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Fungi
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Protozoans
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Spirochaetes
Koch's postulate designed the causative relationship between a microbe and a disease. Viruses are obligate intracellular parasites so they cannot be grown on artificial media.
The first person to propose that disease is due to a natural cause was
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Aristotle
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Hippocrates
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Vesalius
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Pasteur
Hippocrates believed that disease caused inside the body is due to a natural cause not by gods and superstition. He gave humor theory based on the black bile produced, which was later rejected.
Who saved the silk industry of Germany?
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Pasteur
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Spallanzani
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Robert Koch
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Leeuwenhoek
Koch's postulates are about
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Nutrition related diseases
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Pathogen related diseases
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Genetic disorders
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Degeneration diseases
Koch's postulates are used to trace back the causal organism of a particular disease in the host organism. It designed the causative relationship between a microbe and a disease.