Deck 10: Parasites and Vectors

Question 1

In a symbiotic relationship, a parasite termed a __________________ takes up residence inside a host and extracts what it needs, sometimes resulting in harm or death of the host organism.​

Answer 1

symbiont​

Question 2

Match the following terms or phrases with the correct description or definition.​
a.A sexually transmitted parasitic protozoal disease of the urogenital tract.
b.Living organisms which have no skeleton or backbone.
c.Organisms such as trematodes and cestodes which possesses both male and female reproductive organs and the ability to self-fertilize or cross-fertilize.
d.Microscopic water fleas infected with the Guinea worm larvae that are ingested by humans who drink contaminated water.
e.Infection of the gastrointestinal tract characterized by severe inflammation of the intestinal mucosa caused by viruses, bacteria, or parasites.
f.A protozoan in a metabolically active feeding and growth stage of the life cycle.
g.A cell produced during conjugation and capable of dividing to form male and female sex cells.
h.A cell produced during conjugation and capable of dividing to form male and female sex cells.
i.Cells released from an oocyst in the disease malaria and transmitted through mosquito bites.
j.A type of skin rash characterized by reddened or pink flat spots and raised bumps.
​Trophozoite

Answer 2

f

Question 3

A thin, semi-rigid film called a pellicle surrounds a _______________ to give it a more defined shape than an amoeba.​

Answer 3

flagellate
​

Question 4

The genus __________________ is divided into the groups: typhus, scrub typhus and spotted fever.​

Question 5

Which disease causes lymphatic obstruction and the condition called elephantiasis? ​

A)​Filariasis
B)​Ehrlichiosis
C)​Cysticercosis
D)​Toxoplasmosis

Question 6

Match the following terms or phrases with the correct description or definition.​
a.A sexually transmitted parasitic protozoal disease of the urogenital tract.
b.Living organisms which have no skeleton or backbone.
c.Organisms such as trematodes and cestodes which possesses both male and female reproductive organs and the ability to self-fertilize or cross-fertilize.
d.Microscopic water fleas infected with the Guinea worm larvae that are ingested by humans who drink contaminated water.
e.Infection of the gastrointestinal tract characterized by severe inflammation of the intestinal mucosa caused by viruses, bacteria, or parasites.
f.A protozoan in a metabolically active feeding and growth stage of the life cycle.
g.A cell produced during conjugation and capable of dividing to form male and female sex cells.
h.A cell produced during conjugation and capable of dividing to form male and female sex cells.
i.Cells released from an oocyst in the disease malaria and transmitted through mosquito bites.
j.A type of skin rash characterized by reddened or pink flat spots and raised bumps.
Gametocyte

Question 7

​Which of the following types of organisms has a segmented exoskeleton and jointed appendages?

A)​Arthropod
B)​Ciliate
C)​Helminth
D)​Protozoan

Question 8

Match the following terms or phrases with the correct description or definition.​
a.A sexually transmitted parasitic protozoal disease of the urogenital tract.
b.Living organisms which have no skeleton or backbone.
c.Organisms such as trematodes and cestodes which possesses both male and female reproductive organs and the ability to self-fertilize or cross-fertilize.
d.Microscopic water fleas infected with the Guinea worm larvae that are ingested by humans who drink contaminated water.
e.Infection of the gastrointestinal tract characterized by severe inflammation of the intestinal mucosa caused by viruses, bacteria, or parasites.
f.A protozoan in a metabolically active feeding and growth stage of the life cycle.
g.A cell produced during conjugation and capable of dividing to form male and female sex cells.
h.A cell produced during conjugation and capable of dividing to form male and female sex cells.
i.Cells released from an oocyst in the disease malaria and transmitted through mosquito bites.
j.A type of skin rash characterized by reddened or pink flat spots and raised bumps.
​Sporozoites

Question 9

Match the following terms or phrases with the correct description or definition.​
a.A sexually transmitted parasitic protozoal disease of the urogenital tract.
b.Living organisms which have no skeleton or backbone.
c.Organisms such as trematodes and cestodes which possesses both male and female reproductive organs and the ability to self-fertilize or cross-fertilize.
d.Microscopic water fleas infected with the Guinea worm larvae that are ingested by humans who drink contaminated water.
e.Infection of the gastrointestinal tract characterized by severe inflammation of the intestinal mucosa caused by viruses, bacteria, or parasites.
f.A protozoan in a metabolically active feeding and growth stage of the life cycle.
g.A cell produced during conjugation and capable of dividing to form male and female sex cells.
h.A cell produced during conjugation and capable of dividing to form male and female sex cells.
i.Cells released from an oocyst in the disease malaria and transmitted through mosquito bites.
j.A type of skin rash characterized by reddened or pink flat spots and raised bumps.
​Copepods

Question 10

Match the following terms or phrases with the correct description or definition.​
a.A sexually transmitted parasitic protozoal disease of the urogenital tract.
b.Living organisms which have no skeleton or backbone.
c.Organisms such as trematodes and cestodes which possesses both male and female reproductive organs and the ability to self-fertilize or cross-fertilize.
d.Microscopic water fleas infected with the Guinea worm larvae that are ingested by humans who drink contaminated water.
e.Infection of the gastrointestinal tract characterized by severe inflammation of the intestinal mucosa caused by viruses, bacteria, or parasites.
f.A protozoan in a metabolically active feeding and growth stage of the life cycle.
g.A cell produced during conjugation and capable of dividing to form male and female sex cells.
h.A cell produced during conjugation and capable of dividing to form male and female sex cells.
i.Cells released from an oocyst in the disease malaria and transmitted through mosquito bites.
j.A type of skin rash characterized by reddened or pink flat spots and raised bumps.
Trichomoniasis

Question 11

Match the following terms or phrases with the correct description or definition.​
a.A sexually transmitted parasitic protozoal disease of the urogenital tract.
b.Living organisms which have no skeleton or backbone.
c.Organisms such as trematodes and cestodes which possesses both male and female reproductive organs and the ability to self-fertilize or cross-fertilize.
d.Microscopic water fleas infected with the Guinea worm larvae that are ingested by humans who drink contaminated water.
e.Infection of the gastrointestinal tract characterized by severe inflammation of the intestinal mucosa caused by viruses, bacteria, or parasites.
f.A protozoan in a metabolically active feeding and growth stage of the life cycle.
g.A cell produced during conjugation and capable of dividing to form male and female sex cells.
h.A cell produced during conjugation and capable of dividing to form male and female sex cells.
i.Cells released from an oocyst in the disease malaria and transmitted through mosquito bites.
j.A type of skin rash characterized by reddened or pink flat spots and raised bumps.
​Hermaphrodite

Question 12

Which of the following forms of reproduction is classified as sexual?​

A)​Budding
B)​Conjugation
C)​Mitotic fission
D)​Schizogony

Question 13

Match the following terms or phrases with the correct description or definition.​
a.A sexually transmitted parasitic protozoal disease of the urogenital tract.
b.Living organisms which have no skeleton or backbone.
c.Organisms such as trematodes and cestodes which possesses both male and female reproductive organs and the ability to self-fertilize or cross-fertilize.
d.Microscopic water fleas infected with the Guinea worm larvae that are ingested by humans who drink contaminated water.
e.Infection of the gastrointestinal tract characterized by severe inflammation of the intestinal mucosa caused by viruses, bacteria, or parasites.
f.A protozoan in a metabolically active feeding and growth stage of the life cycle.
g.A cell produced during conjugation and capable of dividing to form male and female sex cells.
h.A cell produced during conjugation and capable of dividing to form male and female sex cells.
i.Cells released from an oocyst in the disease malaria and transmitted through mosquito bites.
j.A type of skin rash characterized by reddened or pink flat spots and raised bumps.
​Maculopapular

Question 14

Match the following terms or phrases with the correct description or definition.​
a.A sexually transmitted parasitic protozoal disease of the urogenital tract.
b.Living organisms which have no skeleton or backbone.
c.Organisms such as trematodes and cestodes which possesses both male and female reproductive organs and the ability to self-fertilize or cross-fertilize.
d.Microscopic water fleas infected with the Guinea worm larvae that are ingested by humans who drink contaminated water.
e.Infection of the gastrointestinal tract characterized by severe inflammation of the intestinal mucosa caused by viruses, bacteria, or parasites.
f.A protozoan in a metabolically active feeding and growth stage of the life cycle.
g.A cell produced during conjugation and capable of dividing to form male and female sex cells.
h.A cell produced during conjugation and capable of dividing to form male and female sex cells.
i.Cells released from an oocyst in the disease malaria and transmitted through mosquito bites.
j.A type of skin rash characterized by reddened or pink flat spots and raised bumps.
​Invertebrates

Question 15

​Which parasitic disease is the most common in humans on a worldwide scale?

A)​Babesiosis
B)​Chikungunya
C)​Dengue fever
D)​Malaria

Question 16

Match the following terms or phrases with the correct description or definition.​
a.A sexually transmitted parasitic protozoal disease of the urogenital tract.
b.Living organisms which have no skeleton or backbone.
c.Organisms such as trematodes and cestodes which possesses both male and female reproductive organs and the ability to self-fertilize or cross-fertilize.
d.Microscopic water fleas infected with the Guinea worm larvae that are ingested by humans who drink contaminated water.
e.Infection of the gastrointestinal tract characterized by severe inflammation of the intestinal mucosa caused by viruses, bacteria, or parasites.
f.A protozoan in a metabolically active feeding and growth stage of the life cycle.
g.A cell produced during conjugation and capable of dividing to form male and female sex cells.
h.A cell produced during conjugation and capable of dividing to form male and female sex cells.
i.Cells released from an oocyst in the disease malaria and transmitted through mosquito bites.
j.A type of skin rash characterized by reddened or pink flat spots and raised bumps.
​Flukes

Question 17

Which tropical infection is also known as Guinea worm disease?​

A)​Chagas disease
B)​Cysticercosis
C)​Dengue fever
D)​Dracunculiasis

Question 18

A group of helminths which includes Ascaris lumbricoides and the cause of intestinal obstruction due to the large numbers that reproduce in the GI tract are generally called ____________________.​

Question 19

Match the following terms or phrases with the correct description or definition.​
a.A sexually transmitted parasitic protozoal disease of the urogenital tract.
b.Living organisms which have no skeleton or backbone.
c.Organisms such as trematodes and cestodes which possesses both male and female reproductive organs and the ability to self-fertilize or cross-fertilize.
d.Microscopic water fleas infected with the Guinea worm larvae that are ingested by humans who drink contaminated water.
e.Infection of the gastrointestinal tract characterized by severe inflammation of the intestinal mucosa caused by viruses, bacteria, or parasites.
f.A protozoan in a metabolically active feeding and growth stage of the life cycle.
g.A cell produced during conjugation and capable of dividing to form male and female sex cells.
h.A cell produced during conjugation and capable of dividing to form male and female sex cells.
i.Cells released from an oocyst in the disease malaria and transmitted through mosquito bites.
j.A type of skin rash characterized by reddened or pink flat spots and raised bumps.
Dysentery

Question 20

Single-celled eukaryotic microbes called _______________ are often responsible for parasitic infections in living hosts, including humans and animals.​

Question 21

The term infection pertains to the presence of endoparasites and infestation pertains to the presence of ectoparasites.​

Question 22

​East African trypanosomiasis is also called river blindness and caused by microfilarial worms.

Question 23

Dengue fever is endemic in southern Canadian and northern U.S.states and transmitted by deer ticks.​

Question 24

Parasitic protozoa are capable of developing a protective cyst when environmental conditions are unfavorable.​

Question 25

Malaria is prevalent in developing countries and transmitted by the fecal-oral route where there is poor sanitation and contaminated drinking water.​

Question 26

The mechanism of respiration used by most parasitic protozoa consists of facultative anaerobic processes.​

Question 27

Mosquitoes were the vectors for the disease called bubonic plague which killed millions in the middle ages.​

Question 28

An Ascaris nematode can grow to 12 inches inside the human intestinal tract and have teeth that can chew through the intestinal mucosa to invade the abdominal cavity.​

Question 29

​Pregnant women are advised to avoid exposure to cat litterboxes due to the potential for transmission parasites that cause toxoplasmosis which can harm the developing fetus.

Question 30

The only route of transmission of parasites which infect humans is through bites of arthropod vectors.​