The phylogenetic distribution of the enzyme Rubisco is limited to
A)C₃ plants only.
B)C₃ and C₄ plants.
C)all photosynthetic eukaryotes.
D)all known photoautotrophs, both bacterial and eukaryotic.
E)all living cells.

Question

Quizplus · Accepted Answer

Rubisco is a key enzyme in the process of carbon fixation during photosynthesis, and is found in all known photoautotrophs, both bacterial and eukaryotic. Therefore, the correct answer is (D) all known photoautotrophs, both bacterial and eukaryotic.

The Phylogenetic Distribution of the Enzyme Rubisco Is Limited to