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Louis Pasteur
This category is for questions about the French chemist and microbiologist who led breakthroughs in the understanding of cells and their functions.
499 Questions
Just leave it in a dry space for a while (Two - Three months) and the orange will eventually loose all moisture and become PETRIFIED . . . . . x
In pasteur's What was the function of the curved neck on the flask was to prevent?
the curved neck on the flask was to prevent trapped germs in the air from contaminating the broth. The germs accumulated in the curved neck, preventing germs from reaching the broth, unlike the straight neck the curved neck never changed color or became cloudy after several weeks. Concluding that "germs come from other germs".
What are the contributes made to medicine by Pasteur?
Louis Pasteur made significant contributions to the field of medicine by developing the germ theory of disease, which revolutionized understanding of infectious diseases and led to improvements in sanitation and hygiene practices. He also developed vaccines for rabies and anthrax, laying the groundwork for the field of immunology. Additionally, Pasteur's work on pasteurization helped prevent the spread of harmful bacteria in food and beverages.
What are the disadvantages of pasteurization?
During pasteurization the nutritive value of milk is not altered to a great extent because the temperature employed is not high and cooking time is short. However, there is a slight decrease in heat labile vitamin such as thiamine and ascorbic acid. Proteins are denatured only slightly and minerals are not appreciably precipitated.
- It does not produce an unpleasant cooked flavor.
- Shelf life of milk is increased due to a marked decrease in the total bacterial count.
- Harmful pathogens especially TB bacteria are destroyed.
- It inactivates enzymes such as phosphatase and lipase in milk which adversely affect the quality of milk.
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What was the purpose of Louis Pasteur's experiments?
He was known for his discoveries of the principles of vaccination, microbial fermentation and pasteurization. He was successful in the end but although Pasteur made groundbreaking experiments, his reputation became associated with various controversies. Historical reassessment of his notebook revealed that he practiced deception to overcome his rivals. If you are referring to experiments in vaccinations, his purpose was to control various breaks up of diseases.
What did the photoeletric experiment demonstrate?
The photoelectric experiment demonstrated that light can behave as both a wave and a particle, supporting the theory of wave-particle duality. Specifically, it showed that when light shines on a metal surface, it can eject electrons from that surface, but only if the light's frequency exceeds a certain threshold, regardless of its intensity. This phenomenon provided evidence for the existence of photons, discrete packets of energy, which was a key development in quantum physics. Ultimately, the experiment challenged classical wave theories of light and contributed to the formulation of quantum mechanics.
never researched it but Louis's giving off strong 5"6 vibes a mon avis
How did Louis Pasteur get famous?
Louis Pasteur helped prove that germs that cannot be seen with the naked eye are responsible for illnesses. He studied microbes in many different beverages.
He studied in the college of Arbois and at Besançon, where he graduated in arts in 1840. As a student preparing for the prestigious école Normale Supérieure of Paris, he did not doubt his ability. When he gained admittance by passing fourteenth on the list, he refused entry; taking the examination again, he won third place and accepted. For his doctorate his attention was directed to the then obscure science of crystallography. This was to have a decisive influence on his career. OLA
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Why is pasteurization important in food preparation?
Pasteurisation kills many of the bacteria that would otherwise cause food to spoil, and could cause food poisoning in those who ate it.
Was Louis Pasteur the greatest scientist?
This is very difficult to answer. He WAS a great scientist, but there were many other scientists who provided other good knowledge in different areas of the science. So maybe it's better not to hierarchize the greatness of scientists since this is only a question of opinions.
What awards did Louis Pasteur receive?
Pasteur won the Leeuwenhoek medal, microbiology's highest Dutch honor in Arts and Sciences, in 1895.
