Germ Theory
- Created by: emmy
- Created on: 27-10-12 11:22
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- Germ Theory
- Step 3
- In the 1850's Louis Pasteur (French scientist) became interested in micro- organisms
- When he was asked to examine why beer was going bad
- He found out that particular micro-organisms were vigorously growing. The solution was to boil the liquid
- He was ambitious and wanted to share his ideas....
- He found out that particular micro-organisms were vigorously growing. The solution was to boil the liquid
- When he was asked to examine why beer was going bad
- In the 1850's Louis Pasteur (French scientist) became interested in micro- organisms
- Step 5
- Pasteur proved that micro- organisms made beer go bad
- He said "If wine and beer are changed by germs, then the same can and must happen sometimes in men and animals"
- Germ Theory: Harmful germs enter the body, grow rapidly and cause the disease
- Had an opportunity to see if this theory was right on silk worms- and he could the particular micro- organism in the silk worms too
- He said "If wine and beer are changed by germs, then the same can and must happen sometimes in men and animals"
- Pasteur proved that micro- organisms made beer go bad
- Step 6
- A German doctor (Robert Koch) tried to challenge Pasteur's idea
- But rather than proving the idea wrong he proved once and for all that specific micro- organisms cause specific human disease
- A German doctor (Robert Koch) tried to challenge Pasteur's idea
- Step 3
- Step 1
- Germ Theory
- Step 3
- In the 1850's Louis Pasteur (French scientist) became interested in micro- organisms
- When he was asked to examine why beer was going bad
- He found out that particular micro-organisms were vigorously growing. The solution was to boil the liquid
- He was ambitious and wanted to share his ideas....
- He found out that particular micro-organisms were vigorously growing. The solution was to boil the liquid
- When he was asked to examine why beer was going bad
- In the 1850's Louis Pasteur (French scientist) became interested in micro- organisms
- Step 5
- Pasteur proved that micro- organisms made beer go bad
- He said "If wine and beer are changed by germs, then the same can and must happen sometimes in men and animals"
- Germ Theory: Harmful germs enter the body, grow rapidly and cause the disease
- Had an opportunity to see if this theory was right on silk worms- and he could the particular micro- organism in the silk worms too
- He said "If wine and beer are changed by germs, then the same can and must happen sometimes in men and animals"
- Pasteur proved that micro- organisms made beer go bad
- Step 6
- A German doctor (Robert Koch) tried to challenge Pasteur's idea
- But rather than proving the idea wrong he proved once and for all that specific micro- organisms cause specific human disease
- A German doctor (Robert Koch) tried to challenge Pasteur's idea
- Step 3
- Germ Theory
- 1st microscope invented by Anthony van Leeuwenhoek
- Step 1
- He presented his findings to the Royal Society in London
- Step 1
- The images were fuzzy and distorted though. He saw that everything contained tiny organisms (he called animalcules)
- 1st microscope invented by Anthony van Leeuwenhoek
- He presented his findings to the Royal Society in London
- 1st microscope invented by Anthony van Leeuwenhoek
- Step 2
- Better glass was being produced
- Better glass was being produced
- Joseph Lister (British Scientist) developed the microscope in 1830
- Could be magnified 1,000 times without distortion. Then observed behaviour of micro- organisms
- Step 4
- .... He had an opportunity to spread his theory in 1860
- The French Academy of Science organised a competition for scientists to prove/ disprove the 'Spontaneous Generation' (an old theory about causes of decay
- Pasteur was against Pouchet (leading French Scientist) in this experiment
- Pasteur used experiments to prove his theories were correct, and in 1861 he published hes 'Germ Theory'
- Pasteur was against Pouchet (leading French Scientist) in this experiment
- The French Academy of Science organised a competition for scientists to prove/ disprove the 'Spontaneous Generation' (an old theory about causes of decay
- .... He had an opportunity to spread his theory in 1860
- .... He had an opportunity to spread his theory in 1860
- The French Academy of Science organised a competition for scientists to prove/ disprove the 'Spontaneous Generation' (an old theory about causes of decay
- Pasteur was against Pouchet (leading French Scientist) in this experiment
- Pasteur used experiments to prove his theories were correct, and in 1861 he published hes 'Germ Theory'
- Pasteur was against Pouchet (leading French Scientist) in this experiment
- The French Academy of Science organised a competition for scientists to prove/ disprove the 'Spontaneous Generation' (an old theory about causes of decay
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