Test One Flashcards
Used microscope to view many items such as cork,fleas,butterfly wings etc. and drew
Robert Hooke
- Published book
- First to use the word cells
- Helped Leeuwenhoek get published
Robert Hooke
1673
Leeuwenhoek
Created a Microscope that was powerful enough to allow him to be the first to see/desribe objects in pond water, feces , tooth scraping, semen, cells and “animalcules” bacteria.
Leeuwenhoek
- Published in Royal Society of London
- 2.First to describe “Animalcules”
- Created the first Advanced Microscope
Leeuwenhoek
Meat/maggots jar , covered and open , saw maggots only in open; flies responsible
Francisco Redi
- Disproved Spontaneous Generation of macro organisms
- Dev scientific method
Francisco Redi
Observed cowpox gave immunity to small pox ( milk maids )
Illegal Variolation- giving mild version
Jenner
- Developed the first Vaccination against small pox by injection of pus from cowpox
- Life long immunization
Jenner
Correlated high child birth fever deaths with not washing hands/instruments
Semmelweiss
- Introduced lime water for disinfectant (Asepsis)
- Mortality Decreased
Semmelweiss
Anesthesia increased mortality rates , Introduced heat sanitation of instruments, Disinfection of skin and wound before and after “Father of aseptic Surgery “
Lister
- Created Spray mist disinfectant
- Introduced Asepsis Surgery into surgery room
Lister
Used microscopes to look at chemicals , Responded to wine industry “sick wine”
Pasteur
- Pasteurization
- Pasteur Wine Results
- Father of Fermentation
- Wrote Germ Theory
Pasteur
S Flask Experiment to settle spontaneous generation
Pasteur
Microorganisms do not spontaneously generate
Pasteur
Read Pasteur work and used Solid instead of Broths , Studied Anthrax cause in cattle , Kochs Postulate
Pasteur
Attenuation , weaking of pathogens to create a vaccine , Rabies Vaccine
Pasteur
Accidental chicken cholera , drying cultures or tissue contains organisms
Koch
Proved Germ theory
Pure culture methods and staining methods
Koch
Accidental chicken cholera , drying cultures or tissue contains organisms
Koch
“Dirty Dishes Accident” Isolated the first Antibiotic from Mold Growth
Alexander Fleming
Penicillin was produced in 1941 in the U.S
Alexander Fleming
1670s
Francisco Redi
Jenner
1796
Semmelweiss
1847
1850
Lister
1857
Pasteur
1865
Pasteur
1865
Pasteur
1880
Koch
1929
Alexander Fleming
Three basic shapes
Cocci,bacilli,spirilli
Round
Cocci
Rods
Bacilli
Spiral curved
Spirilli
Chain
Strepto
Staphylococcus
Grape like clusters
Twos
Diplo
Square pack 4&8
Tetra/sarcina
V shaped
Arrangement
Palisade
Side by side
Mild heat to remove most bacteria
Pasteur
Mild heat to remove most bacteria ( Pasteurized )
Pasteur
Pasteur Wine results
1.Fermentation
2.Microbes cause Disease in humans ( germ theory )
3. Micro organisms don’t spontaneously generate
Koch 4 Postulates
- Identify pathogen present , Isolate
- Isolated pathogen must grow by itself in culture medium
- Culture cause disease in healthy animal
- Re isolated , same as individual pathogen
Anthrax Important why ?
Proved germ theory
pure culture staining methods
Anthrax Important why ?
Proved germ theory
pure culture staining methods
Standard Parts in bacteria
cell membrane
cytoplasms
genome
ribosomes
Cell wall
Lps layer ( gram neg only )
Optional parts of bacteria
Plasma
Sex pilli
Fimbrae
Flagella
Glycocalyx
Endospore
Unusual Bacteria
Mycoplasma
Rickettsia and chlamydia
Spirochates
Archaea
Bacterial Growth Curve
Lag Phase
Exponential Growth
Maximum Stationary
Exponential death
All cells die
Crash
Bacteria Cells Divide into two
( Quick )
Binary Fission
Generation time
30 mins
Chicken clora
Pasteur missed step 3 step ( re isolation ) which assisted him in coming up with attenuation
chicken Colera
pasteur missed koch 3rd step ( re isolation ) which assisted him with attenuation vaccine / rabies vaccine
Rifampin
drug target
attack unwinding dna
Rifampin
drug target
attack unwinding dna
Toposonerase
and dna gyrase
enzyme to help coil, open , close , uncoil dna when needed
Ribosomes
protein factory
MRNA- Proteins
70 small Ribosome
Drug target
Drug that interferes with
Ribosomes
Kanamysin
Peptidoglycan ( unique portion of cell wall )
Nag and Nam sugars
tetrapeptides
Prevent expansion of cells in hypotonic environments
cell wall
Gram + cell wall
thick
Teichoic / lipo acids ( anchor transport and id cells )
gram - cell wall
Thin
has outter membrane
LPS layer
Lipid A ( released when cells die in larger numbers )
penicillin
drug that attacks peptidoglycan
give extra abilities to dna ( like apps on phone )
plasmids
resistance to antibiotics
r plasmids
connect cells to allow dna transfer
sex pilli
flagellum rotates clockwise
cells move end over end
flagellum rotates clockwise
cells move end over end
flagellum roasted counter clockwise
straight line movement
+ stimulus = run longer
- stimulus = clockwise to change direction to get away
flagellum
Fertility genes
F plasmids
Conjugation
Connects to cells together to pass plasmid
Production of toxins or enzymes that impact host body in disease
Virulence plasmids
Bacteriocin plasmid
Production of protein protein that kill other bacteria
Flagellar agrangemnt
Lophotrichous
Monotrichous
Peritrichous
Amphirichous
Tuff of flagella
Lophotrichous
One flagella
Monotrichous
Flagella surrounding cell
Peritrichous
Flagella on both ends
Amphitrichous
Mucoid coating composed of polysaccharides or glycoprotein outside of cell wall
Glycocalyx
In respitory pathogen
Dense thick layer
Capsule
Slime on turkey
Biofilms
Structure that allows bacteria to resist harsh conditions
Formed inside cell
Needs nothing to survive
Endospore
Coated with peptidoglycan nd protein
Heat stability
Endospore
Reverse of sporulation
Triggered in favable conditions
Water enters
Spore layer looosens
Germination processs
Heat
Harsh Chemicals
Water enters
Spore cost layer loosen
Lack of nutrient
Benefits of endospores
Non reproducing
Only function inside host
Smaller than bacteria
Virus
Floating free in water or air
Virion
Three designs of eukaryotic
Naked
Enveloped
Infected prokaryotic
Bacteriophages
Composed of phospholipid by layer
Enveloped
Composed of peplomers
Glycoproteins
Unique viral enzymes
Reverse transcriptase - dna to mRNA template
Protease - cuts fast virus ,
Integrase -connects viral dna to host genome
RNA dependent rna transcriptase - to make complementary rna
Bacteriophages only - lysine digest peptidoglycan
Lyric cycle
Virulent , immediately
Lysogenic
Temperature, may be delayed, wait for trigger , immediate death and destruction
Receptor protein on host cell surface
Attachment
Virus attach by
Ligand proteins
Phage and naked ligands bind by
Capomeres
Ligands bind to enveloped virus by
Peplomers
Drug target for attachment
Block binding ligands
Block receptor p
Block peplomers
Enters penetration
Lysozyme , contraction of tail
Capsid remains outside
Endocytosis drug target
Uncoating , removal of capsomeres from genome
Amantadine , tamaflu