How Does the Reductive (Reverse) TCA Cycle Participate in Carbon

question 65

Multiple Choice

How does the reductive (reverse) TCA cycle participate in carbon fixation?

• A) Some of the TCA reactions occur in reverse, assimilating small amounts of CO2.
• B) CO2 assimilation uses up TCA intermediates for anabolic pathways.
• C) Reverse TCA regenerates succinyl-CoA, which may enter gluconeogenesis.
• D) A large amount of ATP is generated.
• E) All reactions take place in a carboxysome.

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