Bacterial Diversity

Question 1

Which phylum is the largest, most diverse phylum of Gram-negatives?

Answer 1

Proteobacteria

Question 2

What are the classes of Proteobacteria?

Answer 2

alpha, beta, gamma, delta, epsilon

Question 3

What is the only phylum that contains bacteria that carry out true oxygenic phototrophy?

Answer 3

cyanobacteria

Question 4

What is the only phylum that contains bacteria that has multicellularity?

Answer 4

cyanobacteria

Question 5

What is the phylum that contains bacteria coiled morphology with axial filaments?

Answer 5

spirochetes

Question 6

Which phylum has unusual cell wall (no PTG)?

Answer 6

Chlamydiae

Question 7

Which phylum is the budding bacteria that blurs line between cell type (since one genus has membrane bound DNA)?

Answer 7

Planctomycetes

Question 8

There are two phyla that participate in anoxygenic photosynthesis. What are they and which releases sulfur as a biproduct and which does not?

Answer 8

chloroflexi (releases sulfur) and chlorobi (doesnt release sulfur)

Question 9

Which phylum Includes only two species of true extremophiles?

Answer 9

Deinococus-Thermus

Question 10

Which phylum Includes bacteria without cell walls and includes endospore formers ?

Answer 10

Firmicutes

Their cute, naked without their cell wall

Question 11

Which phylum Includes acid fast bacteria?

Answer 11

Actinobacteria

Question 12

What is the largest class of Proteobacteria and it includes the enteric bacteria?

Answer 12

Gamma

Question 13

Which class of Proteobacteria contain some bacteria that are predatory to other bacteria?

Answer 13

Delta

Question 14

Which class of Proteobacteria are icroaerophilic and could be flagellated helical or vibrio cells?

Answer 14

Epsilon

Question 15

To which phylum do the orders Clostridiales, Bacillales, Lactobacillales, and Mycoplasmatales?

Answer 15

Firmicutes

Question 16

Which phylum contains the mycobacterium causing leprosy?

Answer 16

Actinobacteria

Question 17

Which genus is the largest known bacteria?

Answer 17

Thiomargarita (big as a fly eye)

Question 18

Which genus of bacteria causes stomach ulcers? To which class and phylum do they belong?

Answer 18

Heliobacterocommon; Class Epsilon, Phylum Proteobacteria

Question 19

What are the pathogenic genus (plural) of Spirochetes? What illnesses do they cause?

Answer 19

Treponema (syphilis); Borrelia (Lyme disease); Leptospira (Leptospirosis)

Question 20

What is the genus of bacteria that has membrane bound DNA? To what phylum does it belong?

Answer 20

Gemmata; Planctomycetes

Question 21

Which phylum of bacteria is extremely important for the microbiome? What are two genus in this regard?

Answer 21

Bacteroidetes; Prevotella, Bacteroides

Question 22

What is the phylum, order and genus of the bacteria causing anthrax poisoning, much food borne illness, and can be used as an insecticide?

Answer 22

Firmicutes, Bacillales, Bacillus

Question 23

This genus is known for contaminating dairy products. Give the order and phylum as well.

Answer 23

Phylum: Firmicutes,
Order: Lactobacillales,
Genus: Listeria

Question 24

This pathogenic genus is known to cause walking pneumonia. Give the phylum and order too.

Answer 24

Phylum: Firmicutes,
Order: Mycoplasmatales,
Genus: Mycoplasma

Question 25

Which genus of bacteria produces most of our antibiotics? Give the phylum too.

Answer 25

Streptomyces; Actinobacteria

Question 26

Which genus of bacteria contains the lactic acid fermenting rods, and is used in production of pickles, buttermilk, and yogurt? Give the order and phylum too.

Answer 26

Phylum: Firmicutes
Order: Bacillus
Genus: Lactobacillus

Question 27

Which genus known for reducing sulfur in massive quantities? Give the class and phylum as well.

Answer 27

Phylum: Proteobacteria
Class: Delta
Genus: Desulfovibrio

Question 28

What is the plague-causing bacteria (phylum, class, order, and genus)

Answer 28

Phylum: Proteobacteria
Class: Gamma
Order: Enterobacteriales
Genus: Yersinia