KSEEB Class 10 · English (1st language) · KTBS Revised 2024-25
Louis Pasteur
Chapter summary, hard words and model exam answers for Karnataka Board Class 10 English.
Free online summary and notes (Karnataka Board Class 10 English). Read it here, no PDF download needed.
About the author
Compiled biography of Louis Pasteur (1822–1895), French chemist and microbiologist whose experiments on germs, fermentation and vaccines transformed medicine and saved millions.
Summary
Pasteur began as a chemist studying crystals and fermentation in wine and milk. He asked careful questions and tested ideas in the laboratory.
Pasteur began as a chemist studying crystals and fermentation in wine and milk. He asked careful questions and tested ideas in the laboratory.
He showed that specific microbes cause disease and souring, disproving spontaneous generation. Life comes from life, not from nothing.
He showed that specific microbes cause disease and souring, disproving spontaneous generation. Life comes from life, not from nothing.
To save French wine and milk he designed gentle heating that kills harmful germs without ruining taste - now called pasteurization.
To save French wine and milk he designed gentle heating that kills harmful germs without ruining taste - now called pasteurization.
He weakened microbes to build immunity. His rabies vaccine for Joseph Meister (1885) made headlines and proved vaccines could conquer terrifying diseases.
He weakened microbes to build immunity. His rabies vaccine for Joseph Meister (1885) made headlines and proved vaccines could conquer terrifying diseases.
Pasteur insisted on observation, experiment and persistence. Failures led to revised hypotheses, not surrender.
Pasteur insisted on observation, experiment and persistence. Failures led to revised hypotheses, not surrender.
Hygiene in hospitals, food safety and immunology spread from his work. SSLC students remember him as saver of lives through science.
Hygiene in hospitals, food safety and immunology spread from his work. SSLC students remember him as saver of lives through science.
Hard words & meanings
| microbe | microscopic organism such as bacteria |
| fermentation | process by which yeast/bacteria change liquids like milk or wine |
| pasteurization | heating liquid to kill harmful microbes |
| vaccine | preparation that gives immunity to a disease |
| immunity | body's ability to resist infection |
| sterile | free from living microbes |
| rabies | fatal disease spread by infected animal bites |
| hypothesis | proposed explanation tested by experiment |
Model exam answers, grammar & audio
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