1. Introductuon To Microbiology

Question 1

What’s microorganisms

Answer 1

Very small organisms;
Sized in the micrometer range
Visible by mean of a microscope

Question 2

What are some types of microorganisms

Answer 2

•prokaryots: bacteria and archea
•eukaryotes: fungi, algae, protists
•Viruses(open question)
•subviral agents
•prions

Question 3

Are diseases caused by microorganisms transmissable?

Answer 3

Yes,mostly

Question 4

Do microbes grow spontaneously in sterile medium?

Answer 4

No. Proven by many experiments(pasteur flask)

Question 5

What are Koch’s postulates?

Answer 5

-it’s golden standard methodological rules for the identification of the causatuve agents of infectious diseases.
They are:
1)Microorganisms must be present in every case of the disease but absent in healthy organisms
2)The sustepcted microorganisms must be isolated and grown in a pure culture
3)The same disease must result when microorganism is innoculated into a healthy host
4) The same microorganism must be isolated from the diseased host

Question 6

Are Koch’s postulates “faulty”

Answer 6

There are some exceptions(like HUV that doesnt go by 2nd,3rd and 4th rule) but they still stand as a good starting point of a casual relationship between microbial agents and diseases

Question 7

What are 3 main domains in tree of life

Answer 7

Bacteria
Archaea
Eukarya