Rasmussen MCB2289 Module 5 Quiz 2017

Question 1

Viruses that infect bacteria are called _______.

E. coli

lytic viruses

naked viruses

Bacteriophages

Question 2

The causative agent for Lyme disease is a

Spirillium

Spirochete

Vibrio

Diplococcus

Question 3

Legionella, Thiobacillus and Burkholderia are examples of

Facultative anaerobic gram-negative rods

Gram-negative aerobic rods

Spirochetes

Anaerobic gram-negative cocci

Question 4

All of the following viruses can cause the common cold except

Coronaviruses

Adenovirus

Herpesviruses

Rhinoviruses

Question 5

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

lysis

altered cell shape

detachment from tissue surface

all answers are correct

Question 6

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

Herpesviridae

Papovaviridae

Adenoviridae

Poxviridae

Question 7

Staphylococci and streptococci are best classified in the group of

Gram-positive cocci

Gram-negative cocci

Gram-negative aerobic rods and cocci

Anaerobic gram-negative cocci

Question 8

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

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 9

Fungi are free-living _________ organisms.

Autotrophic

Chemotrophic

Heterotrophic

Phototrophic

Question 10

Toxoplasma gondii belongs to which group of eukaryotic organisms?

Algae

Fungi

Protozoans

Helminths

Question 11

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

psychrophiles

aerobes

halophiles

heterotrophs

Question 12

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

Diplococci

Streptococci

Tetrads

staphlococci

Question 13

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

Obligate aerobes

Microaerophiles

Obligate anaerobes

Aerotolerant anaerobes

Question 14

Transmissible spongiform encephalopathies are caused by

Flavoviruses

Virusoids

Prions

Orthomyxoviruses

Question 15

The antibiotics penicillin and cephalosporin are produced by

Algae

Slime molds

Fungi

Protozoans

Question 16

Viruses can infect

Plants

Bacteria

Animals

All organisms

Question 17

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

Thermophiles

Psychrophiles

Mesophiles

Psychrotrophs

Question 18

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

Cocci

Bacilli

Spirals

Vibrios

Question 19

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

death phase

logarithmic phase

stationary phase

lag phase

Question 20

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

Lichens

Bacteria

Diatoms

Algae

Question 21

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

Basidiomycota

Ascomycota

Lichens

Zygomycota

Question 22

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

Photoautotrophs

Chemoautotrophs

Photoheterotrophs

Chemoheterotrophs

Question 23

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

protozoans

fungi

helminths

algae

Question 24

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

cholesterol

ergosterol

hopanoids

estrogen

Question 25

Bacterial replication is accomplished primarily by

Mitosis

Meiosis

Cytokinesis

Binary fission