Chapter 1 Flashcards
Microbiology is _
study of microbes that cause or do not cause disease
If a micro causes disease its classified as a _
pathogen
If a micro does not cause disease its classified as a _
free-living
The two main types of microbes are _
Cellular organisms & noncellular Entities
(Cellular Organisms…living organisms) Bacteria is a ____,____
prokaryote
unicellular
(Cellular Organisms…living organisms) Archaea is a ____,____
prokaryote
unicellular
(Cellular Organisms…living organisms) Protists is a ____,____
Eukaryotes, uni- or multicellular
(Cellular Organisms…living organisms) Fungi is a ____,____
Eukaryotes, uni- or multicellular
(Cellular Organisms…living organisms) Helminths is a ____,____
Eukaryotes, multicellular
(noncellular entities) Viruses made up of _
protein and nucleic acid
(noncellular entities) Prions made up of_
proteins
Prokaryotic cells are _(5)
no nucleus
no organelles
unicellular
small
asexual
Eukaryotic cells have _
a nucleus
organelles
uni or multicellular
small or large
asexual or sexual
Symbiosis is _. What are the three types?
two or more organisms living in close contact.
Mutualism (both benefit)
commensalism (one benefits and the other is neither harmed or helped)
parasitism (one benefits and the host is harmed)
The human body is the site of __(4)
1)normal microbiota
2)transient microbiota
3)opportunistic pathogens
4)true pathogens
normal microbiota are &. These live _
mutualists
commensals
in or on our body
Transient microbiota are _
temporary residents that can’t colonize
Opportunistic pathogens are _
normal microbes of our microbiota that can cause disease(Pathogens) when:
1)dysbiosis (disbalance e.g. vaginal yeast infection when taking antibiotics)
2)weakened immune system
True pathogens are _
microbes that cause disease in a host
Good news….Many infectious diseases are iradicated like _.These are preventable through _. They can also be _
smallpox, and polio(on the way)
vaccinations
treated with antibiotics
Emerging diseases are _& _
newly reported
increasing in number or incidents
reemerging is _
previously maintained but a increase in occurrence