Multiple Choice
What will happen to a cyanobacterium that has its photosystem II (PSII) blocked?
A) Additional electron acceptors, such as NADP⁺, will be required to oxidize oxygen and overcome the lost PSII process.
B) Anoxygenic photosynthesis only using photosystem I (PSI) could occur by using cyclic photophosphorylation and an alternative electron donor such as H₂S.
C) It will die from being unable to obtain energy for photosynthesis.
D) Photons will generate excessive reactive oxygen species and the cyanobacterium will die as a consequence.
Correct Answer:
Verified
Correct Answer:
Verified
Q15: Under what circumstances does oxygenic photophosphorylation use
Q16: Regarding CO₂ fixation mechanisms in the autotrophic
Q17: A cell that lacks sulfite reductase but
Q18: The acetyl-CoA pathway is a primary route
Q19: Fermentation often produces CO₂, which can be
Q21: Whether an organism is classified as a
Q22: Which metabolic strategy's existence suggests rapid growth
Q23: Propose why it would be advantageous for
Q24: A bacterium that uses CO₂ as an
Q25: Anammox is an anaerobic process that generates