Question 25

(Multiple Choice)

In some organisms, an alternative oxidase will accept electrons from ubiquinol and reduce oxygen to water with no associated proton translocation. What would be a consequence of having this oxidase active?


A) decreased rate of NADH reoxidation
B) decreased P:O ratio
C) decreased rate of oxygen consumption
D) inhibition of oxidative pathways like the citric acid cycle
E) increased sensitivity to cyanide poisoning

Answer