Question 1

Amoebic dysentery is most commonly contracted through the

Select one:

a. Fecal oral route
from contaminated food or water

b. Direct
transmission from one host to another

c. Puncture wounds

d. Insect bites

e. None of the
choices are correct

Question 2

A bacterial genus that has waxy mycolic acid in the cell walls
is

Select one:

a. Mycobacterium

b. Mycoplasma

c. Streptococcus

d. Corynebacterium

e. Salmonella

Question 3

Classification of viruses into families involves determining
all the following characteristics except

Select one:

a. Type of nucleic
acid

b. Type of capsid

c. Presence of an
envelope

d. Biochemical
reactions

e. Number of strands
in the nucleic acid

Question 4

The basal body of a flagellum in gram-positive bacteria is
anchored into the

Select one:

a. Hook

b. Outer membrane

c. Cell wall

d. Peptidoglycan
layer

e. Cell membrane

Question 5

Lysogeny refers to

Select one:

a. Altering the host
range of a virus

b. Latent state of
herpes infections

c. Virion exiting
host cell

d. Viral genome
inserting into bacterial host chromosome

e. None of the
choices are correct

Question 6

Reverse transcriptase synthesizes

Select one:

a. The positive RNA
strand from a negative RNA strand

b. A negative RNA
strand from a positive RNA strand

c. Viral RNA from DNA

d. Viral DNA from RNA

e. None of the
choices are correct

Question 7

Which of the following is not a viral order in the
classification system?

Select one:

a. Caudovirales

b. Vaccinia
virus

c. Nidovirales

d. Mononegavirales

e. All of the choices
are viral orders

Question 8

Spirochetes have a twisting and flexing locomotion due to
appendages called

Select one:

a. Flagella

b. Cilia

c. Fimbriae

d. Periplasmic
flagella (axial filaments)

e. Sex pili

Question 9

The envelope of enveloped viruses is

Select one:

a. Identical to the
host plasma membrane

b. Only compose of
host endomembrane

c. Always includes
spikes

d. Is obtained by
viral budding or exocytosis

e. None of the
choices are correct

Question 10

Host range is limited by

Select one:

a. Type of nucleic
acid in the virus

b. Age of the host
cell

c. Type of host cell
receptors on cell membrane

d. Size of the host
cell

e. All of the choices
are correct

Question 11

Spirochetes are able to move due to:

Select one:

a. A periplasmic
flagellum

b. A membrane bound
flagellum

c. Cilia serving as
walking feet

d. Pseudopods

Question 12

Lysozyme is most effective against

Select one:

a. Gram negative
organisms

b. Gram positive
organisms

c. Mycoplasmas

d. Cyanobacteria

e. Archea

Question 13

Chloroplasts are composed of membranous sacs called _____
that carry chlorophyll. Surrounding these sacs is a ground substance called
_____.

Select one:

a. Thylakoids,
stroma

b. Granna, stroma

c. Cristae, stroma

d. Cristae, matrix

e. Thylakoid, matrix

Question 14

The outcome of the Gram stain is based on differences in the
cell’s

Select one:

a. Ribosomes

b. Inclusions

c. Cell wall

d. Cell membrane

e. Flagella

Question 15

Most fungi obtain nutrients from dead plants and animals.
These fungi are called

Select one:

a. Saprobes

b. Parasites

c. Substrates

d. Nonseptate

e. Dimorphic

Question 16

Adulthood and mating of helminths occur in which host?

Select one:

a. Primary host

b. Secondary host

c. Definitive
host

d. Transport host

e. Mating takes place
in all hosts

Question 17

After returning from a trip to Africa, Tom begins to feel
very tired and weak. He has severe anemia. A blood smear reveals a protozoan is
present in his blood. The health care provider tells Tom he has malaria. Which
of the following could be the causative agent of his disease?

Select one:

a. HIV

b. T. solium

c. Plasmodium
malariae

d. Trichophyton

Question 18

The endosymbiotic theory has been developed to explain the
emergence of

Select one:

a. Archea

b. Bacteria

c. Prokaryotes

d. Eukaryotes

e. None of the
choices are correct

Question 19

Which of the following is not a division of Kingdom
Prokaryote according to Bergey’s Manual of Determinative Bacteriology?

Select one:

a. Gracilicutes

b. Scotobacteria

c. Firmicutes

d. Tenericutes

e. Mendosicutes

Question 20

Parasitic worms have a highly developed ______ system.

Select one:

a. Digestive

b. Nervous

c. Respiratory

d. Muscular

e. Reproductive