Chapter 1 Flashcards
What is included in the study of Microbiology?
Micro also includes the study of worms and other bugs as vectors of infection. It includes the study of viruses
Animalcules are…
Small organisms that are barely visible to the naked eye. Discovered by van leeuwenhoek and were later called microorganisms
What was wrong w/ the therory of Spontaneous generation?
The initial theory was that introducing sterilized broth to air would expose it to “life force”, however, Pasteur’s experiment proved that the organisms that were seen had actually settled there from the air.
Define Broth
Broth is a solution that contains a growth medium called TSB and is used to grow bacteria
Define Sterile
This means to be completely free of bacteria and other microorganisims
What are endospores and why are they important?
Endospores are a more hardy and dormant version of bacteria. They are formed in times of stress or in the event of a lack of nutrient availability. They allow the bacteria to lay dormant for extended periods of time
What are microbiomes and how are they important to homeostasis?
A community of microorganisms that live/work together as a unit. There are different microbiomes depending on the area
3 products of fermentation
Acid, Gas, Alcohol
What are pathogens and how do they cause disease?
Pathogens are organisms that cause disease, and they do this by disrupting the native flora within the body. When they increase in number they increase the amt of toxins being produced. This leads to infection
Eukarya Traits
Single or Multicellular
have a naked nucleus
-Helminths’
-Algae
-Fungi
-Protozoa
Bacterial Traits
-Single Cell
-Cell walls that contain peptidoglycans
-Can be motile or non motile
-Multiply via Binary Fission
-Can obtain energy in a multitude of different ways
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What are the 6 different forms that bacteria can take?
Coccous, Bacillus, Vibrio, Spirillum, Spirochete, pleomorphic (shape changer)
The deadly strain of the bacteria Escherichia Coli
E.coli O157:H7
Why is malaria so hard to eradicate?
There is no vaccine for it. Also the vectors, which care mosquitos, are hard to control as well. If you can’t control the vector you cannot prevent the spread of the disease.
Define Nanometer
10 to the -9
