• Question
1

Parasitic organisms that spend
most of their time in a mammalian host are called ________

Answers: protozoans

fungi

helminths

algae

• Question
2

The antibiotics penicillin and
cephalosporin are produced by

Answers: Algae

Slime
molds

Fungi

Protozoans

• Question
3

Organisms that require or are
tolerant of salt concentrations in their environment are called:

Answers: psychrophiles

aerobes

halophiles

heterotrophs

• Question
4

Fungi are free-living _________
organisms.

Answers: Autotrophic

Chemotrophic

Heterotrophic

Phototrophic

• Question
5

Toxoplasma gondii belongs to
which group of eukaryotic organisms?

Answers: Algae

Fungi

Protozoans

Helminths

• Question
6

The stage of the growth curve
where the bacteria are producing molecules necessary for cell division, but not
undergoing cell division is called the ___________

Answers: death
phase

logarithmic
phase

stationary
phase

lag phase

• Question
7

The correct sequence of stages in
the multiplication of animal viruses is

Answers:

attachment, penetration, uncoating, biosynthesis, assembly,
release

penetration,
attachment, assembly, uncoating, biosynthesis, release

attachment,
uncoating, penetration, biosynthesis, assembly, release

penetration,
uncoating, adsorption, biosynthesis, assembly, release

• Question
8

Viruses can infect

Answers: Plants

Bacteria

Animals

All organisms

• Question
9

Bacteria that use organic
compounds as the source of both carbon and energy are referred to as

Answers: Photoautotrophs

Chemoautotrophs

Photoheterotrophs

Chemoheterotrophs

• Question
10

The viruses that cause
chickenpox, shingles, and mononucleosis belong to which family of DNA viruses?

Answers:

Herpesviridae

Papovaviridae

Adenoviridae

Poxviridae

• Question
11

Fungi and some protozoa produce a
compound called _____ which strengthens the cell membranes

Answers: cholesterol

ergosterol

hopanoids

estrogen

• Question
12

The causative agent for Lyme disease
is a

Answers: Spirillium

Spirochete

Vibrio

Diplococcus

• Question
13

Beadlike chains of cocci formed
after cell division along a single axis are called

Answers: Diplococci

Streptococci

Tetrads

staphlococci

• Question
14

Damage that can occur to the host
cell as a result of viral infection include:

Answers: lysis

altered
cell shape

detachment
from tissue surface

all answers are correct

• Question
15

The subgroup of fungi that are
used as food(edible mushrooms, morels, and truffles) are called

Answers: Basidiomycota

Ascomycota

Lichens

Zygomycota

• Question
16

Rod-shaped bacteria, some of
which are endospore forming, are referred to as

Answers: Cocci

Bacilli

Spirals

Vibrios

• Question
17

0 out of 1 points

The so-called “red
tide” is generally caused by which of the following organisms?

Answers: Lichens

Bacteria

Diatoms

Algae

• Question
18

Legionella, Thiobacillus and
Burkholderia are examples of

Answers: Facultative
anaerobic gram-negative rods

Gram-negative aerobic rods

Spirochetes

Anaerobic
gram-negative cocci

• Question
19

Bacteria that use oxygen, but
only at a low concentration, are classified as

Answers: Obligate
aerobes

Microaerophiles

Obligate
anaerobes

Aerotolerant
anaerobes

• Question
20

Transmissible spongiform
encephalopathies are caused by

Answers: Flavoviruses

Virusoids

Prions

Orthomyxoviruses

• Question
21

Bacterial replication is
accomplished primarily by

Answers: Mitosis

Meiosis

Cytokinesis

Binary fission

• Question
22

All of the following viruses can
cause the common cold except

Answers: Coronaviruses

Adenovirus

Herpesviruses

Rhinoviruses

• Question
23

Viruses that infect bacteria are
called _______.

Answers: E.
coli

lytic
viruses

naked
viruses

Bacteriophages

• Question
24

Staphylococci and streptococci
are best classified in the group of

Answers:

Gram-positive cocci

Gram-negative
cocci

Gram-negative
aerobic rods and cocci

Anaerobic
gram-negative cocci

• Question
25

Microorganisms that show optimal
growth in moderate temperatures (between 20° C and 45° C) are called

Answers: Thermophiles

Psychrophiles

Mesophiles

Psychrotrophs