5.2, 6.4

Question 1

What acellular pathogen has a circular RNA that can self-replicate?

Answer 1

Viroids

Question 2

Do viroids have protein coating (capsid)?

Answer 2

No

Question 3

What is an example of a viroid?

Answer 3

Potato tuber spindle disease

Question 4

What acellular pathogen are subviral particles

Answer 4

Virusoids

Question 5

What acellular pathogen are non-self replicating ssRNAs

Answer 5

Virusoids

Question 6

What is an example of virusoids?

Answer 6

Subterranean clover mottle virus ( virus contains virusoid in capsid)

Question 7

What acellular pathogen has no genomic material?

Answer 7

prions

Question 8

What are prions?

Answer 8

Misfolded rogue proteins that can cause others to become midfolded

Question 9

What are the causative agents of prions

Answer 9

Transmissible spongiform encephalopathy (mad cow disease, CJD)

Question 10

How are prions transmitted?

Answer 10

Transmitted between animals, to humans through contaminated meat, and human heredity

Question 11

T/F prions are easily destroyed and they have treatments

Answer 11

False, it’s difficult to destroy and there is no treatment

Question 12

What are Helminths and why do we study them?

Answer 12

Multicellular parasites that posses organ systems; their larvae and eggs are microscopic

Question 13

What are the 2 main groups of Helminths (name their alternative names as well)

Answer 13

Roundworms (phylum nematoda) and Flatworms (Phylum platyhelminthes)

Question 14

What is monoecious?

Answer 14

Only one sex (both male and female organs)

Question 15

What is dioecious?

Answer 15

Either male or female

Question 16

What are unsegmented worms with full digestive system found in the intestines?

Answer 16

Nematoda phylum (roundworms)

Question 17

What is Ascaris lumbricoides?

Answer 17

The largest roundworm in humans

Question 18

What is enterobius vermicularis?

Answer 18

Most common nematode found in humans

Question 19

What is Toxocarra?

Answer 19

A nematoda common to dogs and cats and transmitted to human

Question 20

What are the parasitic groups of platyhelminthes? (Name their alternative names as well)

Answer 20

Flukes (trematodes) and tapeworms (cestodes)

Question 21

What are nonsegmented flatworms with oral sucker found at the lining of intestine, lung or liver

Answer 21

Flukes (trematodes)

Question 22

What genera has the causative agent of schistosomiasis; freshwater snails

Answer 22

Flukes (trematodes)

Question 23

What are segmented flatworms with suckers/hooks at the scolex, has reproductive in each section (proglottid), and attaches to small intestines?

Answer 23

Tapeworms (cestodes)

Question 24

What is Taenia and what group(s) does it belong to?

Answer 24

A beef and pork tapeworm found in undercooked/contaminated meat; Helminths, tapeworm (cestodes)