MICROBIOLOGY
Cards (163)
- They suggested that a disease was caused by “invisible living creatures”
- He made the earliest microscopic observations on bees and weevils using a microscope probably supplied by Galileo
- First true microbiologist
- Father of protozoology and bacteriology.
- He discovered animalcules
- He used his self-made single lens microscopre with 50-300x magnification
- Simpler invertebrates could arise from spontaneous generation
- In 1668, he demonstrated that maggots do not arise spontaneously from decaying meat.
- He observed that boiled mutton broth (tightly sealed) eventually became cloudy (after an hour) with microorganisms
- He proposed that organic matter possessed a vital force that could give rise to life
- He improved the previous experiments of Needham by using sealed boiled water and seeds
- He observed that no growth took place as long as the flasks remained sealed
- Living cells can rise only from preexisting living cells
- He challenged spontaneous generation with the concept of biogenesis
- He observed that no growth occurred in a flask containing nutrient solution after allowing air to pass through a red-hot tube
- He resolved the issue of spontaneous generation
- He stated that microorganisms are indeed present in the air and can contaminate seemingly sterile solutions, however the air itself does not create microbe
- He showed that microorganisms can be present in non-living matter (fomites)
- He started that microbial life can be destroyed by heat (basis of the aseptic technique)
- He showed that dust carry germs which contaminates sterile broth
- consecutive days
- Importance of oxygen to life
- Discovered Bacillus Anthracis and Mycobacterium tuberculosis
- He established the first proof that bacteria indeed cause disease
- He developed the antiseptic system of surgery
- He demonstrated the used of phenol for treating surgical wounds and also sprayed phenol over the surgical area
- pro in prokaryotes mean
- karyon in prokaryotes mean
- What organism does not contain nucleus?
- What organism does not contain organelles?
- What is an example of prokaryotes?
- The outermost structure of the bacterial cell
- Have a cell wall and plasma membrane
- Have a cell wall, plasma membrane, outer membrane and periplasm
- The cell envelope plays a crucial role in protecting the cell from harsh conditions like
- Found only in gram-negative bacteria
- Structure of bacteria that is composed of lipopolysaccharide
- Structure of bacteria that has porins
- What is a water-filled structure that allows the passage of water and nutrients
- Structure of bacteria that is referred as the peptidoglycan or murein layer