11) Unit 1 - Photoreceptor Systems in Archea Flashcards
1
Q
Where are Photoreceptor systems present?
A
In:
- Archea
- Bacteria
- Eukaryotes
2
Q
What two things can Archea do that make them different from bacteria
A
- fixing carbon as an energy source
* photosynthesise
3
Q
What protein makes it possible for Archea to photosynthesise
A
•bacteriorhodopsin
4
Q
What is bacteriorhodopsin
A
A Photoreceptor protein used by Archea
5
Q
What is a Photoreceptor protein
A
Light sensitive protein able to sense and respond to light
6
Q
What is the role of bacteriorhodopsin in Archea
A
- generates potential differences by absorbing light to pump protons across the membrane
- the protons return through the enzyme ATP synthase generating ATP
- Therefore this allows Archea to convert light energy to chemical energy
