viruses

Question 1

the most in our body

Answer 1

bacteriofage (affect bacteria)

Question 2

viruses are…

Answer 2

non cellular
inside a host
no membrane or nucleus

Question 3

virusus recognize …

Answer 3

only specific cells
(HIV=immune)

Question 4

they can affect…

Answer 4

bacteria
funghi
plant
animal

Question 5

2 structures

Answer 5

protein casule + DNA or RNA

Question 6

RNA example

Answer 6

HIV

Question 7

DNA example

Answer 7

hepatit C

Question 8

DNA and RNA have…

Answer 8

a protective coat called capsid
sometimes addigtional coat called envelope

Question 9

reproduction of DNA viruses

Answer 9

virus injects DNA into host
our enzymes replicate DNA and reproduce protein
we do not have material to surronder its genetic code so we use RNA for coat protein

this is lytic cycle

Question 10

lysogenic cycle

Answer 10

injects DNA and reproducte but do not synthesize protein or reproduce DNA the cell just divides

when conditions are okay = lytic cycle

Question 11

lysogenic example

Answer 11

herpes simplex virus

Question 12

RNA reproduction () retrovirus

Answer 12

virus with a reverse transcriptase enzyme enters the cell

this enzyme makes RNA to DNA
and DNA double helix

then integration of DNA copy into host chromosome

than protein synthesis

results in coat protein, envelope protein, reverse transcriptase

SARS-CoV-2:
RNA-dependent RNA polymerase
RNA to RNA

HIV:
Reverse Transcriptase
RNA to DNA

Question 13

STD

Answer 13

sexual or skin transferred
some mother to child during pregnancy childbirth or breastfeeding

Question 14

std are caused by

Answer 14

bacteria
virus
parasite

Question 15

true or false? sometimes symptoms take too long

Answer 15

true

Question 16

most common?

Answer 16

HPV

skin to skin or sex
goes away on its own
can cause cervical cancer

Question 17

true or false? you cant kill viruses only slow its reproduction

Answer 17

true

Question 18

how does our body fight viruses?

Answer 18

memory cell