Pre-quiz Questions for Exam 3

Question 1

A prokaryotic species is defined as a group of closely related organisms that breed among themselves. True or False?

Answer 1

False

Question 2

In _______________ typing, bacteria are classified based on the types of viruses that can infect them.

Answer 2

phage

Question 3

Polymerase chain reaction can be used to identify microorganisms even when it is not possible to culture the organisms in the lab. True or False

Answer 3

True

Question 4

_________________________ are used in identification through a series of questions that have two possible answers each.

Answer 4

Dichotomous keys

Question 5

Viruses are classified as prokaryotes. True or False?

Answer 5

False

Question 6

Viruses are not classified as part of any of the three domains. True or False?

Answer 6

True

Question 7

A eukaryotic species is defined as a group of closely related organisms that breed among themselves. True or False?

Answer 7

True

Question 8

__________________ are maps that show evolutionary relationships among organisms.

Answer 8

Cladograms

Question 9

The largest phylum of the Bacteria is the:

Answer 9

Proteobacteria

Question 10

Many archaea are extremophiles. True or false?

Answer 10

True

Question 11

The genus __________________ includes filamentous bacteria that can form asexual spores on the end of aerial filaments.

Answer 11

Streptomyces

Question 12

The bacterium, Epulopiscium, has a volume a million times larger than that of E. coli. True or False?

Answer 12

True

Question 13

The genus __________________ has some of the most complex life cycles found in bacteria, including the production of fruiting bodies.

Answer 13

Stigmatella
Myxococcus xanthus
Myxococcus

Question 14

The bacterium, Epulopiscium, has a volume a million times larger than that of E. coli. True or False?

Answer 14

True

Question 15

___________________ is the study of fungi.

Answer 15

Mycology

Question 16

The structure used by large multicellular algae to attach to surfaces is called the _______________________.

Answer 16

holdfast

Question 17

Silica is found in the cell walls of ______________________.

Answer 17

diatoms

Question 18

Cross-walls found in the hyphae of some fungi are called:

Answer 18

septa

Question 19

Unicellular algae that are free-floating, including those that cause paralytic shellfish poisoning, are collectively called ______________________.

Answer 19

dinoflagellates

Question 20

Mushrooms are found in the:

Answer 20

Basidiomycetes

Question 21

The genus ___________________ is interesting because these protozoa contain chloroplasts and a bright red eyespot.

Answer 21

Euglena

Question 22

The genus __________________ is the cause of a roundworm disease that is contracted by humans who eat poorly cooked pork from infected pigs.

Answer 22

Trichinella

Question 23

The amoebas use by extending projections called ________________.

Answer 23

pseudopods

Question 24

The segment that makes up the body of a cestode is called a:

Answer 24

proglottid

Question 25

Which one of the following is a cestode (tapeworm)?

Answer 25

Taenia

Question 26

Which one of the following is a trematode (fluke)?

Answer 26

Paragonimus

Question 27

The genetic expression of biofilm bacteria is the same as the genetic expression of planktonic bacteria. True or false?

Answer 27

False

Question 28

The system of cell communication where bacteria can recognize the density of a population is known as _____________ _______________.

Answer 28

quorum sensing

Question 29

Biofilms are harmful and do not provide any benefits to humans. True or false?

Answer 29

False

Question 30

Biofilms form a complex vertical structure with water channels that deliver fluid and nutrients deep into the biofilm. True or False?

Answer 30

True

Question 31

Evidence of biofilms has been found in rocks as old as 3.5 billion years old. True or false?

Answer 31

True

Question 32

The genetic expression of biofilm bacteria differs from the genetic expression of planktonic bacteria. True or False?

Answer 32

True

Question 33

Biofilms are harmful and do not provide any benefits to humans. True or false?

Answer 33

False

Question 34

Biofilms form only on surfaces that stay wet all of the time. True or False.

Answer 34

False

Question 35

The genetic expression of biofilm bacteria is the same as the genetic expression of planktonic bacteria. True or false?

Answer 35

False

Question 36

The first synthetic sulfa drug, ________________________, laid the foundation for additional types of synthetic antimicrobials.

Answer 36

sulfanilamide

Question 37

_____________________ drugs kill their target bacteria.

Answer 37

bactericidal

Question 38

Which antimicrobial drugs targets the plasma membrane?

Answer 38

polymyxin B

Question 39

___________________________ are a class of synthetic compounds long used against malaria.

Answer 39

quinolines

Question 40

The ______________________ disk diffusion test is used at a starting point for determining susceptibility

Answer 40

Kirby-Bauer

Question 41

Which of the following antimicrobial drugs targets the cell wall?

Answer 41

vancomycin

Question 42

The first “magic bullet” drug, used as a treatment for syphilis, that was discovered in 1909 was ________________________________,

Answer 42

salvarsan

Question 43

__________________________ drugs cause a reversible inhibition of growth.

Answer 43

bacteriostatic