TEST BANK For Medical Parasitology 7th Edition by Ruth
Leventhal & Russell F. Cheadle
ES
TB
AN
Chapter 1. Introduction
KS
(All Answers at the End of Every Chapter)
1. In a general nematode parasite’s life cycle, the host may ingest a fertile egg. This stage of the
life cycle is referred to as the:
a. Definitive host phase
O
b. Diagnostic stage
c. Infective stage
LU
d. Method of infection
2. A parasite that lives inside a host is referred to as a(n):
TI
a. Accidental parasite
b. Ectoparasite
c. Endoparasite
O
d. Facultative parasite
N
3. Zoonosis is a term used to describe humans’ relationship with a(n):
a. Accidental parasite
b. Ectoparasite
S
c. Endoparasite
, d. Facultative parasite
4. An animal that harbors a parasite that can also infect humans is referred to as a(n):
ES
a. Definitive host
b. Intermediate host
c. Reservoir host
d. Transport host
TB
5. The host in which the parasite reaches sexual or reproductive maturity is referred to as a(n):
a. Definitive host
AN
b. Intermediate host
c. Reservoir host
d. Transport host
KS
O
LU
TI
O
N
S
, Answer Key for Chapter 1. Introduction
1. In a general nematode parasite’s life cycle, the host may ingest a fertile egg. This stage of the
life cycle is referred to as the:
a. Definitive host phase
ES
b. Diagnostic stage
c. Infective stage
d. Method of infection
ANS: C
TB
RATIONALE: This is the stage of the life cycle at which the parasite is capable of entering and
developing within the host. It is a required part of the life cycle of that parasite.
KEY: Introduction: parasite definitions/life cycles | Cognitive level: recall
AN
2. A parasite that lives inside a host is referred to as a(n):
a. Accidental parasite
b. Ectoparasite
KS
c. Endoparasite
d. Facultative parasite
ANS: C
RATIONALE: Endoparasites live inside the host. Ectoparasites live on the outside of the host.
O
Facultative parasites can live as well outside the host as inside the host; host infection usually
occurs accidentally. Other accidental parasites may include parasites that usually infect other
animals.
LU
KEY: Introduction: parasite definitions/life cycles | Cognitive level: recall
3. Zoonosis is a term used to describe humans’ relationship with a(n):
TI
a. Accidental parasite
b. Ectoparasite
c. Endoparasite
O
d. Facultative parasite
ANS: A
N
RATIONALE: Zoonosis is an accidental infection with a parasite that usually parasitizes
animals. Endoparasites live inside the host. Ectoparasites live outside the host. Facultative
S
, parasites can live as well outside the host as inside the host; host infection usually occurs
accidentally.
KEY: Introduction: parasite definitions/life cycles | Cognitive level: recall
ES
4. An animal that harbors a parasite that can also infect humans is referred to as a(n):
a. Definitive host
b. Intermediate host
c. Reservoir host
TB
d. Transport host
ANS: C
RATIONALE: Reservoir hosts harbor parasites that are also infective for humans. Infections
AN
occur when humans encounter infected animals or infective forms related to that parasite’s life
cycle.
KEY: Introduction: parasite-host relationships | Cognitive level: recall
KS
5. The host in which the parasite reaches sexual of reproduction maturity is referred to as a(n):
a. Definitive host
b. Intermediate host
c. Reservoir host
O
d. Transport host
ANS: A
LU
RATIONALE: The definitive host harbors the parasite in its complete form, which promotes
continuance of the parasite’s life cycle. A reservoir host also serves as a definitive host.
KEY: Introduction: parasite-host relationships | Cognitive level: recall
TI
O
N
S
Leventhal & Russell F. Cheadle
ES
TB
AN
Chapter 1. Introduction
KS
(All Answers at the End of Every Chapter)
1. In a general nematode parasite’s life cycle, the host may ingest a fertile egg. This stage of the
life cycle is referred to as the:
a. Definitive host phase
O
b. Diagnostic stage
c. Infective stage
LU
d. Method of infection
2. A parasite that lives inside a host is referred to as a(n):
TI
a. Accidental parasite
b. Ectoparasite
c. Endoparasite
O
d. Facultative parasite
N
3. Zoonosis is a term used to describe humans’ relationship with a(n):
a. Accidental parasite
b. Ectoparasite
S
c. Endoparasite
, d. Facultative parasite
4. An animal that harbors a parasite that can also infect humans is referred to as a(n):
ES
a. Definitive host
b. Intermediate host
c. Reservoir host
d. Transport host
TB
5. The host in which the parasite reaches sexual or reproductive maturity is referred to as a(n):
a. Definitive host
AN
b. Intermediate host
c. Reservoir host
d. Transport host
KS
O
LU
TI
O
N
S
, Answer Key for Chapter 1. Introduction
1. In a general nematode parasite’s life cycle, the host may ingest a fertile egg. This stage of the
life cycle is referred to as the:
a. Definitive host phase
ES
b. Diagnostic stage
c. Infective stage
d. Method of infection
ANS: C
TB
RATIONALE: This is the stage of the life cycle at which the parasite is capable of entering and
developing within the host. It is a required part of the life cycle of that parasite.
KEY: Introduction: parasite definitions/life cycles | Cognitive level: recall
AN
2. A parasite that lives inside a host is referred to as a(n):
a. Accidental parasite
b. Ectoparasite
KS
c. Endoparasite
d. Facultative parasite
ANS: C
RATIONALE: Endoparasites live inside the host. Ectoparasites live on the outside of the host.
O
Facultative parasites can live as well outside the host as inside the host; host infection usually
occurs accidentally. Other accidental parasites may include parasites that usually infect other
animals.
LU
KEY: Introduction: parasite definitions/life cycles | Cognitive level: recall
3. Zoonosis is a term used to describe humans’ relationship with a(n):
TI
a. Accidental parasite
b. Ectoparasite
c. Endoparasite
O
d. Facultative parasite
ANS: A
N
RATIONALE: Zoonosis is an accidental infection with a parasite that usually parasitizes
animals. Endoparasites live inside the host. Ectoparasites live outside the host. Facultative
S
, parasites can live as well outside the host as inside the host; host infection usually occurs
accidentally.
KEY: Introduction: parasite definitions/life cycles | Cognitive level: recall
ES
4. An animal that harbors a parasite that can also infect humans is referred to as a(n):
a. Definitive host
b. Intermediate host
c. Reservoir host
TB
d. Transport host
ANS: C
RATIONALE: Reservoir hosts harbor parasites that are also infective for humans. Infections
AN
occur when humans encounter infected animals or infective forms related to that parasite’s life
cycle.
KEY: Introduction: parasite-host relationships | Cognitive level: recall
KS
5. The host in which the parasite reaches sexual of reproduction maturity is referred to as a(n):
a. Definitive host
b. Intermediate host
c. Reservoir host
O
d. Transport host
ANS: A
LU
RATIONALE: The definitive host harbors the parasite in its complete form, which promotes
continuance of the parasite’s life cycle. A reservoir host also serves as a definitive host.
KEY: Introduction: parasite-host relationships | Cognitive level: recall
TI
O
N
S
