Viruses (week 4)

Question 1

Caspid

Answer 1

outer layer composed of protein subunits

Question 2

Nucleai acid core

Answer 2

DNA or RNA, single or double stranded; linear or cicular

Question 3

Bacteriophages replication

Answer 3

Portions of caspid adhere to specific receptor on the host cell
Not easily recognized by host immune system
viral nucleic acid enters cell
once inside, virus takes over metabolic machinery of the host cell

Question 4

Viral assembly

Answer 4

the components of the virus were produced during replication are organizes into viral particles before being release by the cell

Question 5

Viral Infections

Answer 5

cause infection and disease in plants and animals (common entry point is respiratory tract, open wounds)

ex. include HIV, Herpes cancer, measles, smallpox, influenza, shingles etc

Question 6

Emerging Diseases

Answer 6

one that has appeared in a population for the first time, or that may have existed previously but rapidly increasing in incidence or geographic range

ex. AIDS, SARS, West Nile Encephalitis, Bird Flu, Yellow Fever, Malaria etc

Question 7

HIV snd AIDS

Answer 7

spread through sexual contact, sharing needles, mother to child

Question 8

Influenza “the Flu”

Answer 8

Viral, respiratory, fever, headache, cough, muscle pain, runny nose
mutates quickly

Question 9

SARS-CoV-2

Answer 9

respiratory syndrome, respiratory illness responsible for COVID-19 pandemic

single stranded RNA virus

Airborne, spreads through respiratory droplets

enters human cell by bonding to angiotensin converting enzyme membrane protein that regulates the renin-angiotensin system