Biology Quiz Paper

Question 1 of 61 C Choose the one best response to this question.
Children at day care centers in the United States have a high rate of infection with which one of the following?
A. Ascaris lumbricoides
B. Entamoeba histolytica
C. Enterobius vermicularis
D. Necator americanus

Question 2 of 61 B Choose the one best response to this question.
The main anatomic location of Schistosoma mansoni adult worms is:
A. Lung alveoli
B. Intestinal venules
C. Renal tubules
D. Bone marrow

Question 3 of 61 A Choose the one best response to this question.
Each of the following parasites has an intermediate host as part of its life cycle EXCEPT:
A. Trichomonas vaginalis
B. Taenia solium
C. Echinococcus granulosus
Toxoplasma gondii

Question 4 of 61 B Choose the one best response to this question.
Which one of the following protozoa primarily infects macrophages?
A. Plasmodium vivax
B. Leishmania donovani
C. Trypanosoma cruzi
D. Trichomonas vaginalis

Question 5 of 61
A
Choose the one best response to this question.
In malaria, the form of plasmodia that is transmitted from mosquito to human is the:
A. Sporozoite
B. Gametocyte
C. Merozoite
D. Hypnozoite

Question 6 of 61 A Choose the one best response to this question.
Each of the following parasites is transmitted by flies EXCEPT:
A. Schistosoma mansoni
B. Onchocerca volvulus
C. Trypanosoma gambiense
D. Loa loa

Question 7 of 61 A Choose the one best response to this question.
Each of the following parasites is transmitted by mosquitoes EXCEPT:
A. Leishmania donovani
B. Wuchereria bancrofti
C. Plasmodium vivax
D. Plasmodium falciparum

Question 8 of 61 C Choose the one best response to this question.
Pigs or dogs are the source of human infection by each of the following parasites EXCEPT:
A. Echinococcus granulosus
B. Taenia solium
C. Ascaris lumbricoides
D. Trichinella spiralis

Question 9 of 61
Each of the following statements concerning Pneumocystis carinii is correct EXCEPT:
A. P. carinii infections primarily involve the respiratory tract
B. P. carinii can be diagnosed by seeing cysts in tissue
C. P. carinii infections are symptomatic primarily in immunocompromised patients
D. P. carinii symptomatic infections can be prevented by administering penicillin orally

Question 14 of 61 D Choose the one best response to this question.
Each of the following statements concerning Toxoplasma gondii is correct EXCEPT:
A. T. gondii can be transmitted across the placenta to the fetus
B. T. gondii can be transmitted by cat feces
C. T. gondii can cause encephalitis in immunocompromised patients
D. T. gondii can be diagnosed by finding trophozoites in the stool

Question 15 of 61 D Choose the one best response to this question.
Each of the following statements concerning malaria is correct EXCEPT:
A. The female Anopheles mosquito is the vector
B. Early in infection, sporozoites enter hepatocytes
C. Release of merozoites from red blood cells causes periodic fever and chills
D. The principal site of gametocyte formation is the human gastrointestinal tract

Question 16 of 61