Quiz On Helminths, Arthropods And Prions!

19 Questions | By Hollylisa2080 | Last updated: Jan 4, 2021 | Total Attempts: 265

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Quiz On Helminths, Arthropods And Prions!

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1.

Helminths are a multicellular group of parasitic worms called?
- A.
  
  Protozoa
- B.
  
  Cestoda
- C.
  
  Tetrazoa
- D.
  
  Metazoa
2.

Which helminth has long thin unsegmented tube-like bodies?
- A.
  
  Cestoda
- B.
  
  Trematoda
- C.
  
  Flukes
- D.
  
  Nematoda
3.

Which helminth has only longitudinal direction muscles used for sideways thrashing movement?
- A.
  
  Roundworms
- B.
  
  Flatworms
- C.
  
  Flukes
- D.
  
  Tapeworms
4.

Which helminth does not have a gut or body cavity?
- A.
  
  Fluke
- B.
  
  Digenea
- C.
  
  Tapeworm
- D.
  
  Larva
5.

What bodily excrement is examined for ova and parasites of helminths?
- A.
  
  Saliva
- B.
  
  Urine
- C.
  
  Mucous
- D.
  
  Feces
6.

What WBC count is increased specifically during helminth infection?
- A.
  
  Basophils
- B.
  
  Eosinophils
- C.
  
  Neutrophils
- D.
  
  Lymphocytes
7.

What is taeniasis?
- A.
  
  Fluke infection of the adult in the gut
- B.
  
  Intermediate host infection in the gut
- C.
  
  Adult tapeworm infection in the gut
- D.
  
  Nematode infection in the gut
8.

The amount of nutrients taken from the host by taeniasis is negligible.
- A.
  
  True
- B.
  
  False
9.

What are the most important flukes involving development in the intestines, lungs, liver, and blood vessels?
- A.
  
  Taeniasis
- B.
  
  Clonorchis
- C.
  
  Trichinella
- D.
  
  Schistosomiasis
10.

Arthropods can trasmit viruses, bacteria, and protozoa.
- A.
  
  True
- B.
  
  False
11.

Prions can elicit an immune response.
- A.
  
  True
- B.
  
  False
12.

Which cellular surface is the PrPc protein predominantely expressed?
- A.
  
  Muscle cells
- B.
  
  Nerve cells
- C.
  
  Epithelium cells
- D.
  
  Intestinal cells
13.

Which is NOT true regarding the properties of a prion?
- A.
  
  Large size
- B.
  
  Resistant to heat
- C.
  
  Slow replication
- D.
  
  Lack of nucleic acid genome
14.

What is the name of the infectious protein product resulting from the conversion of PrPc?
15.

What is the inoculation period of spongiform encephalopathies?
- A.
  
  Days to weeks
- B.
  
  A couple weeks
- C.
  
  Months to years
- D.
  
  Several years
16.

Prions can be spread by the use of contaminated surgical instruments.
- A.
  
  True
- B.
  
  False
17.

After crossing the mucosa, what cells transfer prions into neural tissue?
- A.
  
  Red blood cell
- B.
  
  Eosinophil
- C.
  
  Lymphocyte
- D.
  
  Macrophage
18.

Prions are the most effective within species.
- A.
  
  True
- B.
  
  False
19.

Human vCJD and BSE are caused by the same prion strain.
- A.
  
  True
- B.
  
  False