A Cell That Lacks Sulfite Oxidase but Can Still Oxidize

question 34

Multiple Choice

A cell that lacks sulfite oxidase but can still oxidize sulfur for energy could be identified by

• A) adenosine phosphosulfate reductase coupled with substrate-level phosphorylation.
• B) electrons being transferred to cytochrome c prior to shuttling them into the electron transport chain.
• C) identifying an alternative quinone, flavoprotein, or cytochrome.
• D) quantifying the release of sulfate byproduct.

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