Flu (Pandemic/Epidemic)
Pandemic
Pandemic
Outbreak over large area
Epidemic
Outbreak in a single region
How does a virus enter the body?
Through the nose, an open wound, and the mouth
What are the knobby things on the outside of the virus called?
Keys/spike proteins
Once inside the cell what happens to the virus capsules?
They break down and release DNA or RNA
Once the DNA or RNA of the virus inside the cell / nucleus what happens
The virus makes copies of itself using the cells structures
Outside the nucleus the DNA or RNA (of the virus) are doing what?
They're doing protein synthesis to make new viruses
How do you new viruses leave the cells?
By rupturing/exploding the cell
vaccine
When dead or weakened viruses get injected into the body for the immune system to be prepared when the actual virus comes
Biosynthesis
The process when the virus is creating more virus particles inside a cell
viral envelope
The outermost layer of a virus that has spike proteins attached
Capsid
The protein shell around the DNA/RNA of the virus
Macrophages
A type of white blood cell that consumes viruses
antibodies
The protein structures that mark cells for destruction (they get produced by memory cells)
memory cells
The cells that produce antibodies. They prevent one from getting the same sickness twice
influenza
The common flu virus (cough,sneeze,fever)
HPV (human Papillomavirus)
A virus usually transmitted sexually that causes warts in
rhinovirus
An RNA virus that is highly contagious that causes cold symptoms
herpes
A virus that causes cold sores
HIV
A virus that causes AIDS and is transmitted sexually
Ebola
A virus in Africa that is highly contagious and very deadly
Pathogen
Any virus or bacteria that causes sickness
Bacteria
Single celled prokaryotic living things that reproduce with binary fission
Skin
First line of defense
colony
Where bacteria originated in the body (Ex. the back of the throat has a bacteria colony that could spread throughout the body)
Agar
The nutrient rich substance used to grow bacteria on
Mucus
A slimy substance in the nose that helps protect the respiratory and digestive systems.
Lyme Disease
A bacterial disease caused by ticks
Macrophages
The structures white cells use to eat pathogens
Penicilin
The first ever antibiotic discovered by Alexander Fleming
Superbug/Pan resistant
A bacteria that is immune/resistant to all known antibiotics
Evolution
When bacteria become immune due to only the fittest being able to survive
Black Plague
A plague in 13th century europe that wiped out 1/3 of the population
Lytic
The virus cycle in which the virus quickly reproduces and kills the cell
Lysogenic
The virus cycle in which the virus stays dormant until certain conditions are met
Immune system
The system in the body put in place to protect the body from anything harmful
Infections
When pathogens get inside the body
What do cells under attack do?
They send signals to the immune system
Phlegm
A sticky and thick substance produced by the respiratory system and can be coughed up or expelled through the nose.
How do vaccines work
They send in weakened, killed, or parts of viruses which the immune system can train on and create memory cells, so that when the real virus comes, it is prepared
Will antibiotics help fight viruses?
No, the immune system must fight the viruses, medications can only help with the symptoms
How do viruses get transmitted? (6 ways)
Cut in skin
Eating contaminated food
Sexual transmission
Through the air
Bites from animals (Vectors)
Vectors
Diseases transmitted by animals
(T or F) Most bacteria are Prokaryotic
True, most bacteria do not have a nucelus
Pus
The formation of dead white blood cells accumulating at the skin
Alexander Fleming
The person who discovered antibiotics by leaving a colony next to a fungi, and saw that the fungi killed the bacteria
Taxonomy
The discipline of classifying and naming organisms
Carolus
A Swedish scientist in the 16th century that created Binomial Nomeclature
Binomial Nomeclature
A 2-part scientific name for a species (always written in italics)
Taxon
A group or level of organization
The 7 Taxons
Kingdom
Phylum
Class
Order
Family
Genus
Species
Phylogeny
The study of evolutionary relationships among organisms (Ex. Homologous structures, chromosomal characteristics, DNA sequence, embryonic development, Fossil record)
Systematics
Evolutionary classification or phylogeny, not just physical similarities
Morphology
The physical features of an organisms compared to other organisms (Homologous structures)
Cladistics
Uses derived characteristsics to establish evolutionary relationships
Derived Character
A character that appears in recent ancestors/organisms but not in its older members
Cladogram
Diagram that shows evolutionary relationship
Molecular clock
Using DNA comparisons to see how long the organisms have been independently evolving
Mutation Rate
The speed at which the DNA of an organism mutates (also known as the molecular clock of an organism)