s33 to s63 bact diversity

Question 1

what kind of gram bacteria are proteobacteria?

Answer 1

gram-negative

Question 2

what organisms are under alphaproteobacteria

Answer 2

• Photoheterophs
• Oligotrophs
• Methylotrophs

Question 3

what environment do oligotrophs live in?
what are the two important species in it

Answer 3

aquatic where there are low nutrient concentrations
- caulobacter
- hyphomicrobium

Question 4

what are endosymbionts

Answer 4

• Nitrogen-fixers and plant roots

Question 5

what are the three free-living nitrogen fixers?

Answer 5

derxia, beiierichia, azotobacter

Question 6

if your oxidizing ammonia to nitrite what genus would you use?

Answer 6

nitrosomonas

Question 7

if your oxidizing nitrite to nitrate what genus would you use?

Answer 7

nitrobacter

Question 8

what clade includes mitochondria

Answer 8

rickettsias
(causes rocky mountain spotted fever that is spread by ticks)

Question 9

what are nitrifies

Answer 9

oxidize ammonia to nitrite (NO2)

Question 10

what two organisms are opportunistic invaders of the lungs in cystic fibrosis patients

Answer 10

pseudomonas aeruginosa
Burkholderia cepacia

Question 11

what are sulfur lithotrophs and what do they do?

Answer 11

• beggiatoa
  oxidize h2s to sulfur

Question 12

what organisms Oxidize iron or sulfur?

Answer 12

Acidithiobacillus

Question 13

what are the Sulfur and iron phototrophs?

Answer 13

Chromatium
anoxygenic photosynthesis
uses hydrogen sulfide as an oxygen donor

Question 14

two aerobic rods?

Answer 14

-Pseudomonas species
-Legionella pneumophila

Question 15

bacteria that penetrates into periplasm of proteobaccterial cells as a parasite

Answer 15

Bdellovibrio
(the B is silent)

Question 16

most common cause of gastritis and stomach ulcers

Answer 16

helicobacter pylori
(microaerophile)

Question 17

what bacteria genera are the major flora of the human colon?

Answer 17

Bacteroidetes

Question 18

most common cause of blindness

Answer 18

chlamydia trachomatis
(obligate intracellular parasites)

Question 19

chlamydiae alternate between two different developmental stages with different functions what are they?

Answer 19

1. elementry body: infectious form
2. reticulate body: for intracellular replication

Question 20

only bacteria that has an internal nuclear membrane

Answer 20

planctoyces