Test 1 material

Question 1

What domain does red algae belong in?

Answer 1

eukarya

Question 2

What domain does cyanobacteria belong in?

Answer 2

bacteria

Question 3

what domain does halophilic prokaryotes belong in?

Answer 3

archaea

Question 4

what domain does streptococcus belong in?

Answer 4

bacteria

Question 5

what domain does protozoa belong in?

Answer 5

eukarya

Question 6

what domain does yeast belong in?

Answer 6

eukarya

Question 7

Leeuwenhoek is attributed with what accomplishment that has aided the study of microbiology?

Answer 7

invention of the microscope

Question 8

Pasteur could not have met Koch’s postulates for his work on diseases. Why?

Answer 8

Pasteur worked with liquid broths, so he could not isolate pure cultures of the organism, which is an essential step in proving causality by Koch’s postulates.

Question 9

You find two new species as you are examining growth in seawater cultures. As you examine them, you see that organism 1 has 70s ribosomes and organism 2has both 80s and 70s ribosomes. what do you know about each of the organisms?

Answer 9

Organism 1 is a prokaryote and organism 2 is a eukaryote (and has mitochondria and maybe chloroplasts)

Question 10

A virus that infects and replicates within bacteria?

Answer 10

Bacteriophage

Question 11

an infectious entity affecting plants, smaller than a virus and consisting only of mucleic acid without a protein coat?

Answer 11

viroid

Question 12

an infectious protein particle similar to a virus but lacking nucleic acid

Answer 12

prion

Question 13

smallest individual proteins

Answer 13

prion

Question 14

HIV is an example of ?

Answer 14

Retrovirus

Question 15

What classical taxonomy is based on mode of motility?

Answer 15

Protozoa

Question 16

What is classified by pigmentation color?

Answer 16

Algae

Question 17

arrange in order of size: large - small

• bacteria
• parasite
• elephant
• virus

Answer 17

Elephant>protozoa parasite>bacteria>virus

Question 18

Antiobiotics target what part of the cell?

Answer 18

cell wall

Question 19

What is similar in size to a mycoplasma?

Answer 19

poxvirus

Question 20

What is the smallest microbe bacteria?

Answer 20

mycoplasma

Question 21

Can a cell exist without a plasma membrane?

Answer 21

NO

Question 22

Do viruses have ribosomes?

Answer 22

NO

Question 23

Prokaryotes do not have a nucleus, what do they have instead?

Answer 23

nucleoid

Question 24

Do all prokaryotes have a cell wall?

Answer 24

No

Question 25

What does a slime layer do?

Answer 25

protects

Question 26

Where will an electron transport chain for generating ATP be found in prokaryotes and eukaryotes?

Answer 26

Pro: cell membrane Euk: mitochondria

Question 27

Give an example of an area of microbial study for which which future microbiologist will be needed.

Answer 27

New infections & merging diseases; genome sequencing: host pathogen relationships

Question 28

Where is linear DNA genome found?

Answer 28

Eukaryotes

Question 29

70s ribosomes (careful)

Answer 29

Prokaryotes & eukaryotes

Question 30

Flagella is found in?

Answer 30

Prokaryotes and eukaryotes

Question 31

capsules are found in?

Answer 31

prokaryotes

Question 32

cell walls are found in?

Answer 32

prokaryotes

Question 33

What would be one survival disadvantage for a bacterium having a capsule?

Answer 33

They are well organized and are hard to remove from the cell.

Question 34

What would one survival advantage for a bacterium having a capsule?

Answer 34

protection against phagocytosis

Question 35

Phagocytosis

Answer 35

the ingestion of bacteria or other material by phagocytes and ameboid protozoans

Question 36

B. cereus is seriously a gram positive rod. If lysozyme is used to destroy its cell wall. what shape will it be?

Answer 36

coccus (spherical) becuase it is the shape of least resistance.

Question 37

Smmelweiss made an observation and developed methods in response to that observation. what was his observation?

Answer 37

worked with child death fever- noticed the mortality rate is higher in hospitals than at home because doctors did autopsy between births- the deaths lowered when they washed their hands.

Question 38

what apparatus did pasteur use to disprove spontaneous generation?

Answer 38

swan-neck flask