Archaea

Question 1

What features do archaea lack?

Answer 1

Nucleus and membrane bound organelles.

Question 2

What is the cell wall made of?

Answer 2

Psuedopeptidoglycan

Question 3

What features does the cell wall have?

Answer 3

It can form membrane mono layers

Question 4

What are the benefits of forming membrane mono layers

Answer 4

Less susceptible to high temp

Question 5

Psychrophile

Answer 5

Survives at low temps

Question 6

Thermophile

Answer 6

survives at high temps

Question 7

Barophile

Answer 7

High hydrostatic pressure

Question 8

Halophile

Answer 8

High salt concentration

Question 9

How do archaea reproduce?

Answer 9

Asexually via binary fission, fragmentation, or budding

Question 10

Halobacterium

Answer 10

Aerobic, high salt conc.

Question 11

What do halophiles use as a proton pump?

Answer 11

Bacteriohodpsin

Question 12

What is bacteriohodpsin

Answer 12

protein carrying protons across membrane

Question 13

Methanobacterium

Answer 13

Anaerobic, nonmotile, rod shaped

Question 14

Where is mathanobacterium found

Answer 14

GI tract of animals

Question 15

What does methanobacteria use to oxidize hydrogen

Answer 15

CO2

Question 16

What are methanogens used in

Answer 16

biogas production and sewage treatment

Question 17

The oxidation of hydrogen by methanobacteria is used to make what

Answer 17

Methane

Question 18

Thermoplasma

Answer 18

Facultative anaerobe, lacks cell wall, flaggelated, lives at high temp and acidity

Question 19

Thermoplasma respires using what

Answer 19

Sulfur and organic carbon

Question 20

What is a facultative anaerobe

Answer 20

Respires using anaerobic and aerobic respiration

Question 21

Sulfolobus

Answer 21

High temp and acidity, thrives in volcanic springs

Question 22

What is sulfolobus’s final e- acceptor

Answer 22

Sulfur