Intro

Question 1

Lytic cycle

Answer 1

virus inserts into cells, exploits cellular mechanisms replicates its DNA and structure, bursts

Question 2

Lysogenic cycle

Answer 2

viral DNA inserts into host DNA, replicates with host DNA, remains with host cells until stress, seperates from host DNA and returns to Lytic cycle

Question 3

Virus

Answer 3

a non-cellular particle containing DNA/RNA and a Protein coat

Question 4

Capsid protein

Answer 4

Virus coat potentially immunogenic and can serve as a ligand

Question 5

Bacteria

Answer 5

Prokaryotic, unicellular w/o nucleoid, no membrane bound organelles, asexual binary cell division

Question 6

Types of bacteria

Answer 6

obligate aerobic, anaerobic, facultative aerobic, microaerophilic(low O2 levels), thermophiles, halophiles(salt), acidophiles

Question 7

Eg. Obligate aerobic bacteria

Answer 7

Mycobacterium tuberculosis

Question 8

Eg. anaerobic bacteria

Answer 8

Clostridium, Bacteroids

Question 9

Eg. facultative aerobic bacteria

Answer 9

Vibrio cholera, E. coli

Question 10

Eg. microaerophilic bacteria

Answer 10

Campylobacter spp

Question 11

Eg. thermophile bacteria

Answer 11

Thermococcus

Question 12

Eg. acidophile bacteria

Answer 12

Helicobacter pylori

Question 13

Protein synthesis

Answer 13

DNA transcription->mRNA->mRNA leaves nucleus through nuclear pore->ribosome in cytosol translates mRNA into protein

Question 14

Primary viral transmission

Answer 14

fecal to oral

Question 15

Enteric virus specificity

Answer 15

very specific to host

Question 16

Infectious dose

Answer 16

pfu plaque forming unit