Metabolic Pathway of Microorganisms - Anoxygenic Photosynthesis

4 important questions on Metabolic Pathway of Microorganisms - Anoxygenic Photosynthesis

In which two classes do reaction centers fall?

  1. Quinone type (Q-type)
  2. Iron-sulfur type

What kind of reaction center do purple bacteria use and what is the special pair?

Q-type kind of reaction and two molecule of bacteriochlorophyll a is the special pair.

What is reverse electron transport?

An energy-requiring process driven by the energy of the proton motive force. The electrons come from electron donors of quite positive reduction potential. This mechanism is used to obtain reducing power to reduce CO2 to cell material, if a Q-type reaction center is used.
  • Higher grades + faster learning
  • Never study anything twice
  • 100% sure, 100% understanding
Discover Study Smart

Why does an iron-sulfur type reaction center not need reverse electron transport?

The FeS-proteins have a much more electronegative reduction potential and therefore reverse electron flow is unnecessary. The generated electrons are ultimately transferred to a protein called ferredoxin.

Try our study magic for free

a PDF, study it super fast
  • No sign up, email or credit card needed!
  • AI makes unlimited flashcards
  • Get unlimited quizzes and tests
  • Ask AI anything
Create a notebook
  • No sign up, email or credit card needed!
  • Have and keep perfect overview
  • Make flashcards, notes and mind maps
  • Review, test and score!

The question on the page originate from the summary of the following study material:

  • A unique study and practice tool
  • Never study anything twice again
  • Get the grades you hope for
  • 100% sure, 100% understanding
Remember faster, study better. Scientifically proven.
Trustpilot Logo