Chapter18

Question 0

Phylum

Answer 0

Group of bacteria all sharing a common ancestor that diverged from earlier bacteria

Question 1

Central apparatus of gene expression in bacteria that sets it apart from archaea and euks

Answer 1

RNA polymerase
Ribosomal RNA
Translation factors

Question 2

How are phylum a determined?

Answer 2

Small subunit rRNA sequence

Question 3

Earliest diverged and “deep branching” bacteria

Answer 3

Thermopiles

Question 4

What makes Thermopiles unique in mutations

Answer 4

They mutate faster than most so their molecular clocks are accelerated and appear to have diverged earlier than they did

Question 5

Aquificales and thermotogales

Answer 5

Most extreme bacterial hyperthermophiles

Genomes show extensive transfer of archaeal genes

Question 6

Aquifex pyrophilus

Answer 6

Flagellated rod

Question 7

Thermocrinis ruber

Answer 7

Forms filamentous mats in hydrothermal vents

Question 8

Thermotoga maritime

Answer 8

Use anaerobic respiration

Question 9

Phylum thermos- deinococcus

Answer 9

Have ornithine in peptidoglycan cross bridges

Question 10

Deinococcus thermus

Answer 10

Moderate thermophiles

Heterotrophs

Question 11

Deinococcus radiodurans

Answer 11

Not thermophilic

Resists extremely high forded of radiation and desiccation

Question 12

Chloroflexi

Answer 12

Photoheterotrophic
Moderately thermophilic
Green non-srb
Contain photosynthetic apparatus within chlorosomes
Form filamentous mats in association with thermophilic Cyanobacteria