Microbes Flashcards

1
Q

What are differences between archea and bacteria?

A

1- different cell walls : most archea do not have peptidoglycan

2- Unique cell membrane: archea lipids are ether bon (not ester bound) and branched

3- unique metabolism: archea don’t use glycolysis or krebs cycle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What are the main archeal functions?

A
  • Methanogens
  • Ammonia oxidizers (catalyze reactions from NH4=> NO3)
  • Denitrifiers ( responsible for some steps in denitrification that produce NO and N2O
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What are differences between Gram + and Gram -

A

Gram +:

  • Purple
  • No outer layer
  • Big peptidoglycan
  • ex: firmicutes, bacillus, listeria

Gram -:

  • Pink
  • Outer membrane
  • Peptidoglycan
  • Much more common
  • Cell is less rigid
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What is the differences between photo and chemo trophes?

A
Photo= energy from liight 
Chemo= energy from breaking chemical bounds
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What is the difference between litho and organo trophs?

A

Litho= inorganic

Organo= organic source of carbon

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What are some impacts of viruses?

A
  • many plant viral pahtogens are soil-brone
  • Exert control on microbial population sized and turnover and thus influence rate of many mircobial processes

-

How well did you know this?
1
Not at all
2
3
4
5
Perfectly