Microbiology 101

Question 1

Why were the Koch’s postulates created?

Answer 1

To introduce criteria necessary to associate a microorganism to a disease.

Question 2

Koch’s postulates

Answer 2

The bacterium should be associated with the lesions of the disease (1), possible to isolate in pure culture from said lesions (2), that pure culture should be able to replicate the lesions on suitable laboratory animals (3) and from those lesions in animals, it should be possible to reisolate the bacterium once more (4).

Question 3

Bacteriophages

Answer 3

Viruses that attack bacteria.

Question 4

Anaphylaxis

Answer 4

A life threatening allergic reaction.

Question 5

Basic description of a bacteria.

Answer 5

Unicellular prokaryotic microorganism with no chlorophyll and a peptidoglycan cytoplasmic membrane.

Question 6

Prokaryotic

Answer 6

A cell with no nuclear membrane and one circular chromosome.

Question 7

Cocci

Answer 7

Round or oval bacteria

Question 8

Bacilli

Answer 8

Rod shaped bacteria

Question 9

Vibrios

Answer 9

Comma, curved shaped bacteria

Question 10

Spirilla

Answer 10

Rigid spiral shaped bacteria

Question 11

Spirochetes

Answer 11

Flexous spiral bacteria

Question 12

Actinomycetes

Answer 12

Branching filamentous

Question 13

Mycoplasmas

Answer 13

Cell wall deficient, no stable morphology