Unit 1: Chapter 4: Archaeal Cell Structure

Question 1

What habitats do archaea thrive in?

Answer 1

anaerobic
hypersalinic
extreme pH
high temperatures

Question 2

Two major types of lipids in the archaeal membrane

Answer 2

glycerol dietherdiglycerol tetraether

Question 3

Derived from the PM and CW and carry cytoplasmic contents

Answer 3

Extracellular vesicles

Question 4

Function in gene trasnfer in thermophiles and protect DNA from denaturation at high temperatures

Answer 4

Extracellualr Vesicles

Question 5

Similarities between bacteria and archaea cytoplasm:

Answer 5

no membrane bound organelles
inclusion bodies

Question 6

How do archae ribosomes differ from bacterial?

Answer 6

by rRna sequence and protein composition

Question 7

Ireggularly shaped, supercoiled chromosome that is not usually membrane bound

Answer 7

Nucleoid

Question 8

Made of pilin proteins anchored to PM has two types

Answer 8

pili

Question 9

Hollow tubes connecting daughter cells post division

Answer 9

Cannulae

Question 10

Hook like structures for surface attachment

Answer 10

Hami

Question 11

How is Archaea flagella differnet than bacteria?

Answer 11

Thinner
not hollow
powered by ATP hydrolysis rather than proton motive force
Moves forward and backward