Flashcards in Lecture 1 Deck (29):
First compound microscope
Two lens system
1655 Robert Hooke
Applied term cell to life's smallest units
Van Leeuwenhoek 1676
Simple microscope -single lens
Saw Protozoa and bacteria for the first time
When was cowpox vaccine against smallpox first tested ?
Cowpox against smallpox
Who and when proposed cell theory?
Who introduced antiseptics to prevent the disease?
Semmelweis ,hospital in Vienna
Who studied epidemic of cholera and where ?
London, 1800s , snow
What is Pasteur famous for ?
-showed that lactic acid fermentation was due to microbe
-shows that do not arise via spontaneous generation
Explain theory of Spontaneous Generation of Microorganisms?
What is Lister famous for ?
Antiseptic surgery and use of carbolic acid to maintain asepsis
Who discovers nucleic acid?
What is R Koch known for?
-demonstrated that anthrax is caused by Bacillus anthracite
Uses gelatin to cultures bacteria
In his lab his assistants wife shows agar
Discovers tubercle bacillus
Gram stain development
What is Pasteur known for?
Explain Kochs postulate...
Who recognized archaea for the first time?
Woese and fox
What is virulence trait?
Virulence traits enable an organism to colonize a host and/or cause a disease
What it means to be Dimorphic Fungus?
Can sometimes grow as a yeast form and other times as a mold form •Several pathogenic fungi are dimorphic, growing as a mold form in the environment but as a yeast form when infecting an animal
Eukaryotic cell structure components?
Flagella and cilla
What is the vesicular transport involved in uptake of large molecules in eukaryotic cells?
Endocytosis and phagocytosis
What is the function of Lysosomes?
Breakdown of macromolecules
They contain internal acid ph and acid hydrolyses
Where does the Glycolysis and Pentose Pathway occur?
Cytoplasmic matrix -custom
Where does the TCA cycle occur ?
Size of eukaryotic ribosomes?
80s when translating an mRNA
Formed of 40s and 60s subunits
40s subunits contain rRNA 18s
How is destination of newly made protein determined?
By the location of ribosomes
How does flagella and cilia move?
Undulating motion due to complex microtubules core and cilary ATPase named ciliary dynein provides energy
Protozoan and animal cells lack cell walls
Fungal , algal and plant cells have cell walls