2 Introduction to Microbes Flashcards
List the major micro-organisms involved in causing human disease
- Viruses
- Bacteria
- Fungi
- Parasites
What is a prion disease?
Infectious agent composed entirely of protein material
What is mycoplasma?
Bacteria that lack cell walls
Where do mitochondria come from?
Derived from alpha bacteria
List some features of a virus structure
- Envelope
- Capsid
- Spikes
- Nucleic acid
What system is used to classify virus?
Baltimore classification of virus
What is a bacteriophage?
Virus that infects bacteria, can transmit DNA from one to another
What shapes does a bacteria come in?
- Coccus
- Sprillus
- Bacillus
What is a gram stain?
A technique used to differentiate between gram-positive and gram negative bacteria
What colour is what in a gram stain?
Gram-positive - Violet stain
Gram-negative - Pink stain
What is an obligate aerobe?
A bacteria dependent on oxygen for survival
State some differences between prokaryotes and eukaryotes
Check table
Give an example of a common viral infection?
Adenovirus
What is the best way to make a specific diagnosis of adenovirus?
Viral PCR
What is an endotoxin?
Toxin arise form bacteria and cause damage, endotoxin means part of the bacterial structure e.g LPS
