Anti- Viral

Question 1

virus

Answer 1

• lives in host cell

- rapidly mutates and reproduces

Question 2

bacteria

Answer 2

• doesnt need host cell; can be extinguished by antibiotics

Question 3

body immune response

Answer 3

-produce antibodies to atack virus and buil immunity

Question 4

hiv

Answer 4

(RETROVIRUS); turns RNA into DNA

• releases RNA into cells to create viral DNA
• produces viral particles
• destoryes helper T cells
• mutates rapidly
• lies dormant in cell

Question 5

treatments

Answer 5

• prophylatic

- antiviral

Question 6

prophylatics

Answer 6

preventative masure; stimulate body to prepare specific antivodies to the immunity (ACTIVE IMMUNITY)

limits of vaccines; viruses can mutate

Question 7

antivirals

Answer 7

interfere with the viral life cycle and prevent release of new viral particles from host cell
e.g. alter cell DNA to prevent virus’s multiplication and block enzymatic activity within host cell to stop virus’s multiplication

example: Amantidinel changes he cell membrane to prevent virus entry to host cell; preventative measure

Question 8

flu virus proteins

Answer 8

hemaglutinin (H); glycoproteins that enables virus to attach to host cell before entering

neuaminididase (N); enzyme that catalyzes a cleavage reaction that allows the virus to release virus particles from host cell to spread infectionsl snips of sialic acid from glycoproteins on host cell surface membrane

Question 9

flu virus antivirals

Answer 9

• inhibit neuraminidinase or hemaglutinin action and binding

examples:
neuraminidiase inhibitor:
tamiflu and ostalamitvir (0RAL)
-relenza (zanamivir) (INHALATION)