Introduction to Viruses Flashcards
What is a Virus?
A submicroscopic infectious agent that repliccates only inside the living cells of an organism.
Can a Virus reproduce independently?
No
What must a Virus have to survive and reproduce?
A Host Cell
Are Viruses considered living or non-living?
Non-living
What is one thing Viruses and cells have in common?
Genetic Material
What is the function of the spiked projections?
Allow the Virus to attach to the Host Cell
If a Virus cannot survive/reproduce without a Host Cell, why are the spiked projections so important?
They have to be able to attach to the Host Cell to reproduce
What is the function of the Capsid?
Protects the Genetic Material in the Virus
The Capsid of a Virus functions the same as what cell structure?
The Nucleus
Can a Virus survive without a Host Cell?
No
What is a Host Cell?
A Living Cell that the Virus enters and replicates within and ultimately infects
What system of the body does HIV/AIDS infect?
The Immune System
What system of the body does the Flu infect?
The Nose, Throat, and Lungs
How is the Flu and COVID-19 Virus spread?
Droplets from Sneezing, Coughing, and Talking
How can you prevent Viral infection?
Washing your hands with soap and water thoroughly and often, Avoid touching your face, especially your nose, mouth, aand eyes, Eat a healty and colorful food diet, Stay home if you become infected, Sanatize surfaces with bleach, Cough into your arms or hands, don’t cough towards others
What is a Vaccine?
Injecting one with antigenetic material to stimulate an individual’s immune system to develop adaptive immmunity to specific Viruses
Are Vaccines used to prevent or treat Viruses?
Prevent
Can you use antibiotics to treat Viruses?
No
What best describes the Genetic Material of a Virus?
It can be DNA or RNA depending on the Virus
A bacterial cell uses the flagella to-
Move around
Bacterial infections and viral infections are treated differently. What best describes the correct way they are treated?
Viruses can be prevented with vaccines and bacteria can be treated with antibiotics
What structure does the Rhinovirus use to succesfully attach to your nose and throat host cells?
Its spiked Projections
The Genetic Material is stored and protected within what structure?
Nucleus
